Little Mouse | Sanji X Reader

Little Mouse | Sanji x Reader

Summary: An espionage mission gone wrong had you on the run from the Marines. You snuck onto a random pirate ship to hitch a ride out of town but were discovered by the ship’s cook, who was oddly fond of mice.  Tags: one-shot, fluff, no use of y/n, f!reader (one use of “lady” in reference to reader), mouse-zoan!reader, spy!reader, set in East Blue just after Loguetown

a/n: i have always loved Sanji’s soft spot for mice, and this idea of Sanji with a reader who was a mouse zoan wouldn’t leave my mind so please enjoy this little fic! i’ll be returning to my Thousand Sunny Slice-of-Life series after this, so feel free to check that out too! (also, enjoy this adorable pic of baby sanji feeding a mouse)

You messed up. 

You scurried through the streets of Loguetown, your tiny paws agilely dodging the feet of all the people milling around. 

You really messed up this time.

A couple of marine soldiers were hot on your heels, desperate to accomplish their superior’s bizarre order of capturing a measly little mouse. You reveled in their apparent frustration as they whipped their lowered heads left and right to find you, to no avail. You were too quick for them. 

Now that you thought of it, this whole situation wasn’t even your fault in the first place. You prided yourself in being smart enough to know when you were walking into a trap, and you were certainly observant enough to distinguish a lie from the truth. 

It just so happened that a member of the pirate crew you were spying on was a fool. 

You had been involved in an under-the-table deal with the Marines for over a year now, pocketing Berries in exchange for valuable information that could lead to the capture of East Blue’s most notorious pirates. It was dirty work, and you hated every second of it, but what could you say? Your devil fruit ability was perfect for this and it was a way to put food on your table. 

Your mission this time was to scout a small pirate crew, which was affiliated with one of the marine’s bigger targets. You had overheard a crew member telling his captain that they were supposed to meet the “Big Boss” on the western coast of Sixis Island at dawn. You had no suspicions at all that the man was telling the truth, because he had believed the information to be correct. In such a manner, he had unknowingly — luckily for him — passed on false intel to you, and consequently to the Marines. If you had waited an hour longer, you would’ve heard the ship’s captain scolding the man for misinformation following his conversation with “Big Boss” over the transponder snail, which reaffirmed the location of the actual meeting point.

So imagine the Marines’ surprise when they arrived at the western coast to find not a single soul. The pirates, which were positioned on the southwestern coast, were alerted of the Marines’ arrival and successfully launched an ambush, turning the table around and causing an immense loss for the Marines. 

The Marines were furious at you. One wrong intel and over a year’s worth of precious, accurate information you provided them went down the drain. You were deemed a traitor, and a bounty was immediately put upon your head. 

That was how you find yourself scampering around the streets in a dash toward the harbor. You need to get on a ship and get out of this town as soon as possible. You figured a pirate ship would be your best bet, as they were the least likely to be fraternizing with the Marines.

You were desperately running through the harbor when a stunning caravel with a sheep figurehead caught your eye. You were well-versed in the pirate crews of the East Blue, but you didn't recognize the ship's Jolly Roger — a skull wearing what appeared to be.. a straw hat?

Without a second thought, you snuck onboard, careful to ensure that no marine saw you. You slipped through an open door and found yourself in a quaint kitchen and dining room. You scurried into one of the slightly ajar lower cabinets, and waited. 

After what seemed like hours, you heard the crew, which seemed to be a very small one, preparing to cast off from the harbor. 

Your nerves started to settle as you felt the ship slowly moving away from the town of the beginning and the end. The exhaustion of the day finally caught up to you, and you found yourself drifting off to sleep to the sway of the ship upon the waves. 

The respite was short-lived though, as you were awakened by the clangs of pots and pans. You could only hope that whoever was cooking wouldn’t need anything from the cabinet that you were currently huddled in. But of course, with how your luck was going lately, that was too much to wish for. The cabinet door was suddenly yanked all the way open and you came face to face with a blonde man, his piercing blue eyes wide in surprise. You froze, fully prepared to be met with revulsion, the way normal people react when they see a mouse in a kitchen. 

Instead, to your surprise, the young man’s lips curled up into a wide smile, “Oh hey, little mouse. What are you doing here? You must’ve slipped in at Loguetown, huh?”

He picked you up gently and sat you on top of his palm, “Well, aren’t you a cute little fella?”

If mice could blush, you were sure your white fur would’ve turned red all over. No one has ever called your mouse form cute before. 

He set you down on one of the long benches on the side of the dining table, and continued talking to you, as if he knew that you could understand him, “A ship’s not a good place for a mouse to live, but since you’re already here, let’s take care of you until we can release you on the next island, yeah?”

He went back to the stove and put a little bit of what he was cooking onto a small plate. The cook placed the plate in front of you, “Dig in, Mouse-chan. I hope you like fried rice.”

The inviting aroma of the warm meal made your stomach rumble, reminding you of how hungry you were. You sniffed around the plate, acting as close to an actual mouse as possible to avoid suspicions, before lowering your mouth slowly and taking a small bite. It took everything in you to remain silent and expressionless as you tasted the most delicious food that you have ever had in your whole life. A few minutes was all you needed to clear the plate. You wished you could thank the chef, but you knew it would be wiser for you to stay in your mouse form in front of him. 

“This brings back memories.” He chuckled, though a pinch of sadness was apparent in his smile, “I used to cook for mice when I was little.” 

He took away your little plate before serving up the rest of the fried rice onto the dining table, obviously dinner for his crew. He opened the cabinet that he found you in, folded a dishcloth to form some sort of cushion, and put it inside. 

He offered his palm to you, and you tentatively jumped onto it. He smiled at your cooperation, then proceeded to place you on top of the soft fabric inside the cabinet, “My crew is a rowdy bunch. It’s probably best for you to stay in there for now.” 

He closed the cabinet door, but not all the way, allowing a sliver of light and some fresh air to come through. 

The rest of the crew eventually gathered for dinner. You had no intention to spy on them, but old habits died hard, and you found yourself unwittingly perking up your round ears and listening in to their conversation. 

You figured out that the crew was composed of at least five people – three more boys aside from the cook, and a girl. They seemed to be on the younger side, and you could tell that the crew was only newly formed.

You were only half-listening as they went on to talk about all sorts of mundane things, until the girl suddenly spoke up, “According to this map, we’re about three days away from the Reverse Mountain…”

Wait… the Reverse Mountain? This small-time pirate crew was heading to the Grand Line? With just five people? You couldn’t believe your ears. You had hitched a ride with a bunch of idiots. 

Despite your predicament, a minuscule part of you couldn’t help but feel a tiny bit excited. After all, the Grand Line used to be your dream too, once upon a time. You had fantasized about traveling the world, before reality crashed down upon you and forced you into doing dirty work for the Marines just to survive. 

A little voice inside your head told you that maybe sneaking into this very ship was a blessing in disguise. You were a fugitive with a bounty now after all, so what was stopping you from joining a pirate crew and sailing freely in the Grand Line? 

The more rational voice reminded you that you were an uninvited guest on this ship. There was no way the crew would take you in – a stranger they knew nothing about, and a stowaway at that. No, you couldn’t dare reveal yourself to them. It was better to get off this ship at the next port and figure out your way from there. 

The bustle of the dining room slowly died down as one by one, the crew retired for the night. You heard the sound of dishes being washed, and you felt your thoughts being pulled back to the blue-eyed cook and the kindness that he showed you. If you’ve learned anything from being the user of the Mouse-Mouse Fruit, it's that cooks hate mice in the kitchen. You couldn’t understand why this one treated you differently. 

As if summoned by your thoughts, the door to the cabinet opened to reveal the blonde cook, “You doing alright, Mouse-chan?”

You couldn’t help but admire how handsome he looked under the warm lights of the kitchen. 

The cook brought a little cup of water and put it beside you inside the cabinet. Once again, you were taken aback by the generosity of this man. 

“Sleep tight, I’ll see you in the morning.”

He turned off the lights and headed outside, and before you knew it, a deep sleep claimed you. 

You awoke to the crew’s chatter as they had their breakfast. You hadn’t felt this rested in ages. You saw that a block of cheese and some crackers had been placed beside the water, definitely courtesy of the cook, and you nibbled on them gratefully. 

The day passed on peacefully, with you taking a much-needed rest inside the cabinet and the cook sparing you spoonfuls of the dishes he was cooking for the crew’s lunch and dinner. 

By evening, you were getting a little antsy, the way you always felt when you stayed too long in your animal form. You longed to transform back into a human and stretch your whole body, but you knew it was a risk.

You heard the cook, which you found out from the crew’s conversation was called Sanji, finish cleaning up the kitchen. Just like the day before, Sanji put a cup of fresh water inside your cabinet and bid you good night, then turned off the lights and left the kitchen. 

You hesitated for a second. Now that he had left, the kitchen was empty, dark, and quiet. It should be safe for you to transform for a few minutes, right?

Stealthily, you sneaked outside the cabinet, and in the comfort of the unlit kitchen, you turned yourself into your original human form. You stretched your arms over your head, moving them side to side as you extended your spine. You were so focused on the pleasure of being back in your body that you didn’t notice the footsteps heading toward the kitchen before it was too late. There was no time for you to change back into a mouse as Sanji switched on the kitchen lights. 

The both of you were frozen to your spots as you sized each other up. Sanji looked you up and down, taking in your fitted white top and pants, before locking his gaze on your face. 

His confused expression turned into one of puzzled recognition as he stared into your eyes, the only distinctive feature that you shared with your mouse form. His lips trembled before he sounded out in disbelief, “M-mouse…chan?”

You timidly nodded, heart pounding as you feared what would come next. He would definitely rat you out to his crew, then they would probably throw you overboard. 

“I, uh, forgot my cigarettes,” was the only thing Sanji could say amid his shock. 

Silence shrouded the room, both of you not knowing what to say, before Sanji finally opened his mouth again. 

“Who… what are you?” He asked carefully, in a tone that was filled not with anger, but with curiosity. 

“Do you know what devil fruits are?” You uttered softly, revealing your voice to him at last.

Sanji nodded, “Our captain is a devil fruit user. So, you’re one too?” 

“Yes, the Nezu Nezu no Mi.” You explained, “It allows me to switch between three forms – my true human form, a mouse, and some sort of human-mouse hybrid.”

He was quiet as he took you in once again, his face lit with wonder. A trail of blood started to flow down his nostril and he quickly wiped it away with the sleeve of his suit.  

“Are you okay? You’re not…mad?” You asked hesitantly, before blurting out in one breath, “I’m really, really sorry for stowing away on your ship. You have been nothing but kind to me, and I’ve been tricking you and taking advantage of your hospitality.”

You got down on your knees, “I understand that this is impertinent of me, but I beg you, could you please let me stay until you arrive at the next island? I promise I’ll disappear after that, and I won’t trouble you and your crew ever again.”

Tears started forming in your eyes as you waited for the cook’s verdict. His leather shoes entered your blurry sight as he stepped closer to you. He crouched down before you and tipped your chin up with his fingers, “Of course, you could stay. You could stay however long you like. I don’t know what your situation is, but I would never turn away a lady in need.”

His thumb absentmindedly brushed away the tears from your cheeks as he continued, “I still have to tell the Captain, but I have a feeling he’d be happy to have you onboard.”

“Why?” You asked incredulously, “Why would he be happy to find a stowaway in his ship?”

Sanji chuckled, “Well, for one, you could turn into a mouse. That would be more than enough reason for him to let you stay, or permanently join the crew even.”

At your confused face, he laughed louder and told you, “Trust me, you’ll never meet a man quite like my Captain.”

You slowly nodded, regaining a little bit of composure with Sanji’s reassurance. 

“I have one condition, though.” You heard Sanji say as he stood up and offered you his hand. 

You felt your heart drop. Of course, he would have a condition. You knew it was not going to be as simple as that. 

You took his hand and stood up, lifting your chin in determination, “Name it.” 

Sanji grinned cheekily, “Show me your human-mouse form.”

Heat flooded your cheeks at his request. You hated your hybrid form. It was hideous, for goodness’ sake. However, you could not possibly deny the wish of this man, who has shown so much kindness to you. 

You let his hand go and took a step back. You drew a shaky breath, before allowing your power to flow over you and shift your body into the only form that Sanji had not yet seen. 

You hugged your fur-covered arms insecurely, and nervously looked up at Sanji, expecting to find disgust written all over his face. Yet, his face was filled with what you could only describe as awe. He reached out and ran his fingertips over your whiskered cheek inquisitively, “Beautiful.”

You shivered at his word and his gentle touch, before turning your face away from him in embarrassment and immediately transforming back into a human. 

Sanji laughed in amusement at your shyness, “Hey, don’t hide your pretty face from me.”

The heat on your cheeks intensified, and your eyes wandered around the kitchen, trying to find a distraction from Sanji’s gaze upon your face. Your eyes landed on today’s newspaper lying on top of the dining table, the corner of a wanted poster visible from between its pages.

You took out the poster and cringed at the sight of your full name and picture looking back at you. 

“Is that you?” Sanji asked, “No wonder I thought your face looked a little familiar.” 

He took the poster from you and scanned its content. You felt your heart inadvertently skip a beat as the sound of your name fell from his lips for the first time. 

“15 million Berries?” He raised a swirly eyebrow at you, “That’s quite a bounty for a little mouse.” 

You sighed, “I guess you deserve an explanation.”

You ended up telling him everything. You weren’t sure why, seeing as he was practically a stranger, but you knew that you could trust him. 

You told him about how you left your hometown to go out to sea, filled with dreams of the Grand Line. About how you were stranded on an island with all of your provisions and Berries lost to the sea, and how you ended up accidentally eating a devil fruit to tame your hunger. Of course, you also told him all about how you came to be in this mess with the Marines in the first place.

Sanji was quiet as you talked, only offering small hums and nods to indicate that he was listening. When you finished, he simply thanked you for trusting him with your story. 

In exchange, he told you a little about the crew. He told you about his Captain, Luffy, who dreamed of becoming the King of the Pirates. You had initially laughed, thinking that he was joking, before realizing that Sanji was dead serious. You shook your head in disbelief and smiled to yourself, just what the hell were you getting yourself into?

Without even being aware of it, You and Sanji had talked through the night, getting to know one another over cups of tea that Sanji had prepared at some point during your conversation. 

The rising sun caught the cook’s attention, and he immediately jumped up to prepare breakfast. 

You trembled anxiously at the thought of meeting the rest of the crew soon, not knowing how they would react to your presence. 

Sanji noticed and squeezed your shoulder reassuringly, “Everything is going to be alright, Mouse-chan.”

Somehow, you believed him. 

You watched the sun creep higher and higher over the horizon, bringing in a new day and hopefully, a new life for you.

Everything was going to be alright.