A/N this fic takes place in an ending where Yuka died.
Several days after Heavenly host, The 4 remaining students of Kisaragi Academy all tried to move on, except for one person, Naomi Nakashima.
She had lost Seiko Shinohara, her best friend, in that school. One day, she found out the truth that she killed Seiko whilst possessed, and she couldn't accept it and went to the roof of her school, trying to commit suicide. However, one of the survivors, Satoshi Mochida helped her by grabbing her hand just as She jumped. However, Satoshi must stand on the safety fence to catch her. She was grateful that day, but also slightly guilty, as She almost had Satoshi killed.
She smiled after being saved, and that smile made Satoshi happy.
After school, Satoshi and Naomi talked on the way home.
"What's wrong, Naomi? You have been frowning since school's done today." He asked.
"It's just... I'm sorry, but please... Don't try to do that far again... After all... I don't want to lose you too!" She said, beginning to cry.
"There, there, that's OK, Naomi." Satoshi said, comforting Naomi with an embrace.
"You lost your little sister too, Satoshi! How could you be so calm about this!?" She said, sobbing endlessly.
"As long as we cherish the ones we love, we can always be calm, Naomi." He said, those words touched Naomi. Naomi then stopped crying.
"Will you mind to keep a promise, Satoshi?"
"Of course."
"Please, don't ever leave my side, and... Here. As a sign of our relationship." She said, giving Satoshi the black and white cat plush dolls.
"I'll keep the promise, Even till the day I die."
-Timeskip, Many months later...
After that talk, the couple became closer. However, Naomi seemed to forget the promise she made, and began to think that Satoshi probably wanted her to forget about everyone who died in Heavenly Host. One day, Satoshi asked Naomi out on a date to an amusement park.
On the way there, Satoshi noticed Naomi is emotionless, and tried to cheer her up.
"Hey, Naomi."
"Yes, Satoshi?"
"I would've done the same, if I was Yuka, you know."
"Oh... But... My acts on you are still tomboyish, and... Tsundere!"
I smiled, and chuckled at those words.
"That's what makes you cute to me."
"Really?"
"Yeah. Also, despite all of tomboyish acts you did on me, all of those don't change the fact that You're a girl."
"Thank You Satoshi." As Naomi said that, they already arrived at the amusement park.
First, they took a roller coaster ride, which ends up in Satoshi fainted in the middle of the ride.
He woke up after the ride, with Naomi poking his shoulder.
"Pervert." She said.
"Huh?" Satoshi responded.
Naomi pointed to a TV that shows pictures of the passengers during the ride, one of them showing Satoshi's right arm touching her chest, whilst unconscious.
"Humph." Naomi began to walk away.
"H-Hey! That was an accident, OK!? I'm sorry!"
"OK, I'll forgive you." Naomi said.
"Really?"
"If you win that Teddy bear there." Naomi pointed to a dart throwing stand.
"Darts, Huh? My kind of game." Satoshi boasted.
It wasn't really easy, but because of a lucky hit, Satoshi finally won the teddy bear and gave it to Naomi.
They then walked their way out of the amusement park, their hands holding each other. However Satoshi has noticed that Naomi was expressionless ever since He asked her out, No... Ever since that promise was made. Moreover, He missed her smile from that day.
"Please smile..." He said.
Suddenly Naomi stopped walking and released her hand from Satoshi's.
"Why? Why are you being so calm!? So you are thinking I can smile, after what had happened!? I have lost my best friend, and you don't even know my feelings! I even forgot her appearance!" Those words surprised Satoshi.
That was wrong, Satoshi had lost Yuka too...
"You're a coward! insensitive! selfish!" Satoshi now felt that Naomi's words just now were correct. He could not answer a thing to her, not wanting to break the promise.
"Now you don't have anything to say didn't you!?" Naomi asked again, but received no answer, and began to walk away.
Two steps later, Naomi then turned back and said the words that broke the very promise she made herself, and shattered Satoshi's heart to tiny pieces, before running away.
"I wish You DIED in that School!"
-To be continued...