Author's note: This story is a sort of a crossfiction with Tokyo Ghoul, though it's ok if you haven't watched it. There are no TG characters in here and the story takes place completely in the One Piece world. And it's also AU since Law is only 3 years older than Luffy and my OC. Hope you enjoy it and remember that reviews make the author happy;D

Ps: English is my second language so please excuse my weird grammer.

Disclamer: I don't own One Piece or Tokyo Ghoul. I do own my OCs.

Chapter 1 - Tiny monsters

11 year old Law's eyes were widened in terror and he couldn't move a single muscle as he was laying still on the hard ground. Not long ago, he had been through hell and made it out somehow, yet this was something beyond his darkest imaginations, To think such a thing could even exist!

The creature standing in front of him was radiating pure power despite it being not that big in size. His little figure was under the shadows of the small cave's rocky walls still the purple and crimson flames emerging from the creature's wings managed to lighten up the small place enough for it to see his laying body vividly. It's burning red eyes were pointed at his direction. The frizzling sound of flames was reminding him of that burning hell, Flevance, that once was his home. 'Is this what I'm supposed to hear before I die? I ran while this sound was all over the Flevance, and here it is again! Is this fate?! For me to be burned to death?' he thought bitter to himself. His steel grey eyes were still locked on the creature.

Among all the terror and fear he was feeling inside of him, somewhere within that mix of horrified emotions, he found himself looking at the creature's shape with an undoubtable sense of admiration. It was beautiful, graceful, it was scaring him to death but still he couldn't deny it's magnificence as it was standing before him, those shining and pure colors of it's flaming wings and the spell-bounding energy coming out of those blood colored eyes, it truly was like a perfect piece of art, the purest and wildest kind of art he couldn't even imagine before.

He was frozen by the elegance of his death angel. 'God must like me a lot to sent an angel this breathtakingly beautiful to take my life...!' he then closed his eyes after one last glance at the angel and waited for it to approach him. Just a moment later, he felt the angel's presence leaving the cave and heard something dropped on the ground outside his hideout. He opened his eyes in disbelief and saw the back of angel's figure with it's head thrown back staring at the starry sky above. Then suddenly he heard it's sobs. The angel was desperately crying out! He couldn't believe what he was seeing. The angel was crying and sobbing like it was heavily in pain. Law still couldn't move from his spot but he was staring at it with awe for several minutes as the angel was grieving in agony and pain.

Then it happened. Angel raised one shaking arm slowly, opened it's mouth and bit it! It pulled off a piece of it's own flesh and ate it! Law was drowning in cold sweat and uncontrollably shivering, he stilled in his spot as he witnessed the angel biting and swallowing it's both hands while blood was sprouting in the air. 'It's a dream! It's a dream! It's only a nightmare! This can't be real! It... just... can't...' Law thought horrified and pressed his eyes shut trying to ignore the sound of sobbing and the blood dripping on the ground. After a while he heard something hardly slammed onto the ground and then it went completely quiet.

He never dared to open his eyes until the dim light of morning sun creeped on his face. He gathered all of his courage and finally opened his eyes, hoping it all happened in a bad dream. But soon he found out it wasn't as he saw a little bump few inches away from the entrance of the cave. He sat and narrowed his eyes, it looked like a person's body, a child. He barely stood on his feet and hesitated for a second before making his mind and started walking towards it.

His eyes must've been playing tricks on him last night, he concluded, as he stood there staring at a little girl's fragile figure sleeping deep on the hard ground. She looked peaceful, very thin, silk-like raven colored long hair, and a traditional North Blue fluffy hat on her head, very much like Law's with only slight differences. Except for her hat which looked oddly clean and intact, every other piece of her outfit was extremely worn out and ragged. She was wearing a black tank top and blue jean shorts with a pair of black boots.

"Hmmm? It's just a normal kid!" Law mumbled.

His eyes suddenly caught the wholeness of the view before him and he gasped. The girl was sleeping in the center of a huge bloodstained circle on the rocks. The ground around her was completely covered with blood. 'But it can't be! She has ARMS on her body! And there's no wings on her back!' Yet she was there, laying at the same spot he saw the angel feeding on itself and she was covered with blood. He looked at her again more cautiously, her face was buried under the mass of her hair. Law gasped as he noticed her little chin, it was bloody.

'What IS she?! She seems normal now but... IT WAS HER!' Law stood still, staring at her peaceful sleeping figure in disbelief. It was hitting him hard in the head. This tiny girl came to eat him last night, and for some reason she didn't, she ate herself instead! And now she had her arms grown back? Just what was she?! Why didn't she just eat him? And he remembered how much in pain she sounded to be when she left the cave. This thing was dying from hunger, yet it didn't kill him while he knew she could easily do it. A strange feeling was creeping up his spine. She was some sort of a monster, saving his life from herself!

Law carefully leaned down. He held his breath and quickly pocked her arm. Nothing. He pocked her again. 'Well, pocking a sleeping man-eating monster isn't the best idea but she could kill me last night if she wanted to!' he thought.

The girl slightly moved her fingers and tried to raise her hand. Law quickly backed off. She slowly growled and rolled on her back. Her hair went off her face and their eyes locked on each other's. Her eyes widened suddenly and she jumped on her feet in a heartbeat. Stepping backward she stared at Law terrified. Nope, she didn't look like a man-eating monster at all!

He studied her from head to toe. She was fairly shorter than Law, big light grey eyes, an old scar mark under her left eye. A round, pink burn mark went from the front of her left shoulder to it's back, rather than that, her skin was incredibly pale. She was beautiful, Law noted.

She took two more steps backward with her eyes still cautious on Law's movements, she seemed to be afraid of him!

Law stood still. He narrowed his eyes and gazed at her light grey eyes. They seemed awfully lost. Law slowly took a step towards her and said

"Are you alright?!"

She stayed silent for few moments and then shook her head harshly in positive response.

"Who are you? What are you doing here? Is this all your blood?!" he asked impatient.

The girl said nothing in response. Law pouted annoyed and turned away. Dream or not, this girl looked like she needed help! Normally he wouldn't even care to ask her anything and would've just leave her be. But if what he thought happened last night was real, she basically spared his life!

"Come inside if you wanted to rest or something. This is my hideout, but I'm leaving soon." Law coldly said and walked back into the hideout.

After about an hour or so, he heard her light footsteps entering the cave. She walked towards the small pit of water at the end of the cave, dropped her little backpack on the ground and sat down. She had changed into clean clothes, he noticed. After she drank some water, she leaned her back against the wall and looked at Law. Her eyes were calm and cold, Law noticed. No trace of emotions could be found in them. Her expressions were oddly like Law himself. She looked no older than 8, maybe even younger.

"Thank you for letting me in. I'll leave once I gather some strength to move." she said. Her emotionless voice caught Law's attention. She really did look exhausted.

"Who are you?" Law asked curiously. He was getting impatient again.

"It's not polite to ask for someone's name without telling them yours first." she said as she sweetly smiled at him. His jaw fell down as low as gravity and physics allowed. Her manners now seemed terribly in contrast with her appearances. She actually looked like a beggar in his eyes, definitely not one who would care or even know how to politely communicate with others. He pulled himself together and said

"Mhmm... My name is Trafalgar Law, and this cave is where I'm temporarily staying at. Now... who are you?!" he asked again.

She smiled "My name is Lilou. And, well, I'm basically a runaway."

"Lilou... just Lilou?" he asked confused.

She looked down at her boots and whispered "Just Lilou. I... don't know my last name."

"Eeeh?" he tilted his head and blinked. It was odd, not that he cared though. He was pretty sure Lilou was the angel he saw last night, however, he couldn't bring himself to mention anything about it.

"Where are you from? Are you from this island?"

She shook her head in negative response.

"I'm from East Blue. I used to live in an island named Dawn Island. Where are you from, Law?"

"East Blue? Eh?..." he tilted his head and looked at her hat again. She must've stolen that hat then or... ate the owner and took it?! He pushed that thought away immediately.

"I'm from North Blue... From Flevance..." his voice dropped. Lilou gasped as she heard the name. Not that he didn't expect it.

"Fl... Flevance?! The White City? The one that the World Government burned to the ground? Were you there then? How did you escape?! WAIT! Don't tell me... Are you going to die too?!" she nearly shouted the last question.

Law frowned. 'What's with this girl? She's fully aware of the whole thing but she's not... scared of me?! Aren't people normally supposed to be afraid or running away or something? Does she know the truth about the Amber Lead Disease?' Law thought to himself surprised, then it hit him in the head that he's the one whose supposed to be afraid of her!

"You ask too much questions, and you're annoying!" Law answered coldly with narrowed eyes. He turned his back to Lilou. "It's fully bright outside already and you seem to have your strength back. Go away. I don't have time for a noisy brat like you." He stated as he stood up and walked away from her.

"Wait!"

Law stopped but didn't turn around.

"What?"

"Are you alone? Where are you going?"

He rolled his eyes in annoyance. Does her questions ever end?!

"Why? It's none of your business."

"I'm alone too, and I have nowhere to go. I can't go back to my home, and there's nowhere else I'd actually want to go but... I'm... Be my friend, Law!"

His eyes widened in shock. Friend? She knew he was from Flevance, and yet she was asking for his friendship? Besides, 'DO MAN-EATING MONSTERS EVEN WANT TO HAVE FRIENDS? Just what is wrong with her!'

"I don't need a friend!" he turned around and gazed at her with his cold eyes. "I don't care what are you gonna do or if you can or cannot go back to your home. I have things to do and I definitely don't need some random annoying brat like you clinging to my leg."

He turned again and continued walking to the entrance of the cave. 'Tsk.. Friend!' Like he wanted something stupid like that. He just wanted revenge, he didn't care how, he just wanted to avenge his family and his friends who were slaughtered behind the closed bars of Flevance. He wanted to avenge their lives from the world. Plus, he didn't have any spare time to waste on a stupid and pointless task like friendship. Let aside the fact that he could end up in her stomach any second!

"I'm not gonna be in your way, I promise. And I'm Strong too, I can fight well, and..."

She stopped and took a deep breath. She continued with a steady and cold voice which somehow managed to surprise Law.

"And there's a person... a very strong person that... I want to erase from the face of earth."

Law turned to face her again, with slight curiosity this time. Her hat was shadowing her eyes, she looked different, her body was tensed and he could sense a determination drifting out from inside her. She looked up and stared into his eyes with a strange look in hers.

"I'm strong, but that bastard is stronger than me. At best, I only have 3 years to train and become strong enough to defeat that son of a bitch, and revenge what he did to my life."

Law stood quiet, thinking deeply about what she just said. At best she has 3 years to destroy a man who destroyed her life? what was that supposed to mean? Was she sick too? What happened to this little girl? She wasn't acting like her age at all, like Law himself, she looked like she's been through a nasty situation at the peak of her childhood. And that transformation and the blood and her arms... What did that man do to her? To be fair, what Law witnessed last night was enough to cause an 8 year old tiny girl to state such harsh words towards something.

"But at this rate, I'm not sure if I can survive all by myself. I'm not used to be this lonely, I don't want to be this lonely. I'm going to die soon, so meanwhile, staying alone all by myself is not what I'm planning to do."

Law jumped as Lilou started speaking, he was too deep in his thoughts. Now there were even more questions he wanted to ask.

"What do you mean you're going to die soon? Who is this man you're talking about?" he asked curious.

"It's a long story." she mumbled.

"Hey! if you're asking me to be your friend I need to know what kind of person I'm going to deal with!" he almost shouted, annoyed by her awfully meaningless answer.

"I know..." Lilou whispered. She remained silent for few moments as if she was gathering her thoughts. Law sat next to the pit and stared at her. Finally she raised her head and their grey eyes met. She took a deep breath and started.

"I suppose you are accepting me as a friend since you're not being completely rude anymore, so, as a sign of my gratitude and honesty, I'm gonna correct a wrong answer I gave you earlier."

Law narrowed his eyes but stayed quiet. She was too polite!

"My name is Monkey D. Lilou. Few years ago back in my hometown, me and Luffy, my twin brother, met a great pirate captain named Shanks and become friends with him and his nakama, he was basically the main reason we decided to become pirates, we adore him, literally! His first man told Luffy and I to never reveal our full names to dangerous people, or strangers, until we are old and strong enough to be able to fight and protect ourselves properly. I still don't know the reason however."

"D. you said..." Law mumbled absentmindedly as if he was talking to himself. He tapped on his chin with his index finger a few times.

"Now that you mentioned, my name has secret parts too which I'm not supposed to reveal to anyone."

Lilou tilted her head and stared at him with her curios big eyes.

"Really?"

"Mhm. My full name is actually Trafalgar D. Water Law. Water is a real name but the D. is a secret name that has been passing down to generations throughout the history. Now I don't know what it means or why should I hide it, anyways, I don't really care about it now either."

"So it's the D. huh?..." she mumbled confused. "I thought it was the 'Monkey' I had to hide so if people nicknamed me saru(=Monkey) or something and I got mad, I would be able to beat the hell outta them."

Law looked at her in disbelief. Was this little monster serious?!

"Saru?"

"Uhmm."

A sudden rush of laughter suddenly burst out of Law's mouth and filled the whole place. Lilou blinked in confusion as the formerly mean boy was laughing uncontrollably and was grabbing his stomach. She wasn't sure what she said that was so funny but he just wouldn't stop laughing! Soon after, she was laughing at Law's laughter, to the point that both of them were heaving for air and just couldn't stop. Their childish voices filled the air for several minutes and they just couldn't hold back the laughter. For a moment between those joyful minutes, Law realized that since that nightmare he's been through, it was the first time he was feeling that happy and at ease, actually it was the first time he was feeling anything at all besides anger and hatred. He never dared to even wish for being this happy ever again.

At the same time, Lilou too realized it's the first time she is laughing like this since the day she was kidnapped and got separated from her brothers. It felt like she was back home with Luffy, Ace and Sabo again. Sabo... Suddenly she saw his face behind her closed eyes, with his cheerful grin and that one missing tooth of his. At least she knew he was happy for her too as he was watching his little sister from heaven. The thought made her feel a huge rush of joy and relief as she continued laughing with this new friend of hers, Law.

Their loud laughter went on for another few minutes until they turned into giggles. Law tried to sit up as he wiped the tears from his (now more childish) face.

"S-sar-saru..." and chuckled to himself again.

Lilou wiped her tears too as she tried to pull herself together and let out another giggle."Aaaahhh I didn't know you were laughing at this!"

Law looked at her as he hiccuped from too much laughing with widened eyes. "Then what were you laughing at?"

"Your laughter was so funny that made me laugh."

"Seriously!?" he let out another giggle then. Suddenly the air felt so much lighter around the two kids. Both were feeling much more comfortable around each other and they start talking and telling their stories until it was getting dark outside.

"-and then gramps took Luffy and I to the mountain bandits and said we're going to live with Dadan and them. Then we met Ace and Sabo there and we exchanged cups of sake and became siblings." Lilou said with a wide grin on her face "But..." her voice dropped and she fell quiet. Law raised one eyebrow and waited. She looked down at her tiny fingers and continued "One day, me and Luffy and Ace caught up in a huge fire in the Grey Terminal, and Ace went missing for days, he came back eventually, but... Sabo was... we found out that Sabo... was dead... he died in an accident while he was trying to run from his royal family..." Lilou felt a lump in her throat and she felt tears shaping in her big grey eyes. She pressed the palm of her hands against her eyes 'I'm not allowed to cry... not now... not just yet...' she thought and pushed back the tears.

"It was so terrible... we couldn't get over his death for months but as hard as it was, things went back to normal after a while. And then, two weeks after my 7th birthday, I got kidnapped while I was wandering alone by the shore. You see I was really strong for a normal little girl cause we used to train everyday to become stronger by the time we were going to set sail and become pirates, and I kicked the asses of a bunch of those kidnappers, but I was alone and they were too many and they took me eventually. Then I woke up in a ship full of children around my own age and then they dropped us off in an island in North Blue, in that bastard's laboratory. He's a damned distorted psychopath calling himself the greatest scientist in the world, that Caesar Clown! He's the one I'm running from... he performed some horrible experiments on me and literally tortured me for a year, but finally I took a chance and I escaped by using the powers of the Phan-Phan No Mi that he made me eat there. I can create phantoms and mirages for other people and some other stuff. But as I was heading out of the building, I took a wrong turn and I ended up in some sort of a storage room. There were a lot of medical files and some of the children's personal belongings. I wanted to leave soon as I found my stuff but then I got really curious and I checked one of those files. You see I can't quite call myself a doctor yet but I have a lot of medical knowledge, since I learned how to read and write, I used to read a lot of medical and sciential books, and even before that, Makino-chan and Sabo used to read them out loud for me so... it didn't took me much effort to notice that the project, the Gho- the... experiments he performed on us, it was all just a huge failure. I just kept looking for my file so I would know how much longer I will be alive."

'I almost said Ghoul! Dammit I can't let that slip! He'll run if he finds out I'm a monster!' she thought to herself horrid and then looked into Law's eyes.

"And then you escaped and here you are?" Law asked with a low voice. Lilou nodded her head. "I see..." Law whispered.

Then it was an experiment. What she was trying to hide was the result of that man's experiments. He remembered the sense of admiration he felt last night upon seeing her as she was transformed into that thing. He was completely hypnotized by her beauty! But why was she hiding it? Well not that it wasn't understandable, but, she seemed nice, even sweet! And she hasn't tried to eat him or something. 'She was about to say something accidentally, but she stopped! Should I ask?! Nah! She would say if she wanted to, plus, I literally owe my life to her! She spared my life last night and now she wants me to be her friend! Maybe... She's afraid of me leaving her, soon as I know she's... different!' he thought in disbelief, it oddly made sense. He felt slightly sorry for her. They were like each other in some ways though, both considered monsters by the society, both completely alone, both running from death, and both going to die anyways.

At the same time, Lilou was drowned in her thoughts. She was sure he didn't see her last night. She almost killed him! Why would he even be talking to her if he knew what she was? She wasn't even a human anymore, she was a Ghoul! A creature who couldn't even eat humans' food, only human flesh. What would he do if he found out? 'He would run of course! Maybe even try to kill me! I shouldn't get hungry for another three or four weeks, until then, I guess I can have a friend... But then I have to leave before I go crazy and eat him or something! I just have to make him think I'm nor-'

"Hey by the way, what was all that blood around you outside?!" he couldn't stop his curiosity and finally asked. If she wanted to tell him the truth, she would do so now. If she lies, then he would never bring it up again, he decided. Though, he was desperately wishing she decides to trust him and tell him the truth.

Her eyes widened 'Shit!' her brain was desperately looking for a rational answer not containing anything about being a Ghoul, haunting humans and eating their flesh and loosing her sanity to hunger.

"It... it was mine..." truth "I... umm you see, I... can't eat any kind of food after those experiments..." almost truth "And yesterday I... I really wanted to eat some grilled fish I was kinda hoping I could digest it but, I couldn't and I kept throwing up blood until I passed out. It's just that..." she looked down "My body works in a different way after that thing. I don't ever get hungry and I get sick if I eat anything. I can only drink water and some other simple liquids." mostly lie.

Law stared at her tiny figure. He knew exactly what was it that she could eat. He inhaled deeply and nodded his head.

"So, are you alright now?" he simply asked. She looked at him and smiled.

"Yeah, I don't feel sick anymore." she felt relieved that he didn't ask more questions. They kept talking for few more hours.

At night while Lilou was falling asleep, her mind was full with Law's story. He was the elder son of a family of doctors in Flevance. He used to study at a medical school and their lives were complete and full of joy, only until the day that the Amber Lead Disease reached its peak and people from all generations in the city started to fall victim to the fatal disease, including his younger sister Lammy.

Then the nightmare began, people were dying in pain and there was no cure neither any support from the World Government. The nobles of Flevance left the city at early stages, abandoning the dying citizens. The whole country turned into a quarantine area because the government hid the truth about the Amber Lead Disease not being contagious, and anyone who was trying to escape was getting shot dead.

Not so long after, a war broke out. The Navy and the neighboring countries attacked the country and massacred every man, woman and child and set the white city completely on fire and burned it to the ground, justifying their action as self defense.

Law saw his parents, his sister, his friends and everyone else got killed cold-heartedly and barely managed to escape the town, hiding under the dead bodies that were being transported out of town, knowing he had only about 3 years of life expectancy as he checked his father's medical records on him.

He hated the Navy, he hated the World Government, his goal was to kill, burn and destroy as much as he could until he dies, and he didn't believe in anything anymore.