Love like an Ocean ( Giyu x Reader ) * Lemon *

A demon is a demon.

Your POV

As we were walking I can hear groaning sounds.

" This is a secret laboratory, we've been doing experiments on how to cure or turn a demon back into human. " Yoshihiro-san said, Giyuu and I looked at each other.

" Why do you do that? " I asked him, he stopped walking. He slowly turned around and looked at us.

" My only grandson became a demon. " He said, our eyes widen.

" Where is he? " Giyuu asked, Yoshihiro-san then sighed.

" I'm sorry to tell this, but he's the one responsible for all the killings, and why kids at the city are gone missing. " He said with a sad expression.

" I tried to kill him, but I just couldn't. I tried locking him here, but he escaped. " Yoshihiro-san said.

" Why would you keep a Demon in a place like this!? " Giyuu yelled at him, my eyes widen. This is the first time I heard him like this.

" Eating and killing humans is unforgivable! " Giyuu yelled. I just lowered my head, he's absolutely right.

" A demon is a demon. " He said and clenched his fist, I looked at him, his eyes then widen. I just looked away at him.

" Uhh, sorry. " Giyuu said and grab my arm, I then pulled my arm back. His eyes widen.

" No, I should be the one who's sorry. It's all my fault. " Yoshihiro-san said with a deep sigh.

" I'm sorry, Shimazu-san, but we need to do our job. He is no longer the grandson you knew, he is no longer human. " Giyuu said, Yoshihiro-san tears started falling.

" And there is currently no cure for it, (y/n) here and some other Demon Slayers are also doing their research about this. " Giyuu explained.

" I'm so sorry... " I told Yoshihiro-san, he patted my shoulder and smiled, he wiped his tears away.

" Don't worry, I understand. I should have killed him, but I just couldn't. I know what I did is wrong. " Yoshihiro-san said, and wiped his tear away before it falls.

" I know, it must be very hard to kill your one and only grandson. Even seeing him as a demon hurts, how much more if—" I said and he cut me off by kneeling on the ground.

" I beg of you, please kill him. If it means having peace for all of us. " He said, and bowed. I slowly lift him up.

" No need for that, we only do what must be done. " Giyuu said, I looked at Yoshihiro-san. I felt sad for him, I know he doesn't want his grandson dead. But maybe he felt guilt because of what his grandson did.

" Are there demons here? " Giyuu asked, I can hear groaning and screeching, Yoshihiro-san sighed and nodded.

" Please leave the area. " Giyuu told Yoshihiro-san while drawing his sword out. Yoshihiro-san nodded.

" What if these demons haven't ate a human? " I asked Giyuu.

" They all did, the reason why I had captured them was because they're all busy eating their prey. " Yoshihiro-san answered, I hurried up to him and handed Tafu to him.

" Please watch over him while Giyuu and I are away. " I told him, he nodded and smiled, he then left the room. Giyuu started to change his clothes, I wore my haori.

I took my sword out and followed Giyuu, we started decapitating all of the demons in this place.

" What if one day I ate a human, Giyuu? " I asked him that almost made him to be caught off guard.