Warnings: Might contain Yandere!Seto Kousuke x OC, Kiria Karaze

Several months had passed after Mary's death. Seto found himself moving on and she met a girl, her pale blonde hair that reached the middle of her waist, her eyes, which was in different colors, the right one is blue and the left one is red. Don't forget her white skin, and her cheerful smile that always lighten up Seto's days. Kiria Karaze, that's the name of the girl.

One day, when they both were hanging out at the park, she told him something. "Seto-kun." Kiria looked up at him. She was wearing a blue T-shirt with a white dress that reaches the middle of her knee. She also wears short white socks and blue sneakers, while Seto was wearing his usual clothes, a dark green jumpsuit with googles and black sneakers. "Yes, what is it?" Seto smiled at the girl. "I'm going to move to America." Kiria shifted her gaze to the ground and smiled sadly. "My dad got a promotion, he is told to handle the main branch in America. Therefore, we all will move to America in three days. The next three days I'll be busy with packing stuff, so I guess this is the last time I'll be seeing you." she tried not to cry and looked at Seto with a smile while Seto just stood there, not knowing what to say.

"...That means you will leave me?" he frowns. 'You'll leave me just like Mary did?' he thought to himself. "U-um.. Yeah.. But I'll never forget you, Seto-kun." her tears started to form, but she wiped it with her hand.

'Oh no, you can't leave me, Kiria. I won't let you.' Then something inside Seto snapped. He can't let someone he loves leaves him again. He will do anything to keep her from leaving.

Finally, he spoke. "Kiria, why don't we play a game? One last game, before you leave." he tried to suppress a wicked grin that slowly crept up on his face. Kiria, being the naïve girl she was, just nodded her head, "Okay. Anything you want to do in our last day being together." She didn't realize what danger she put on herself.

"Then how about. . . . Hide and Seek?"

TBC

[Author Note] Hello :3 Nice to meet you all, this is my first yandere fanfiction that I wrote! I like yandere characters, so I decided to write one, about Seto being a yandere xD Oh yeah, Mary's dead in this fanfic. Sorry guys :(

P.S: The OC's last name is Karaze, and her first name is Kiria. But Seto's first name is Kousuke (at least that's what I read at the wiki) and Seto is his last name. Just so you know.