You should be dead, but when you open your eyes you are in a bed with a boy you don't recognize. When the boy woke up, his face reminded you of someone.

That's when you realized, this boy who looked 18 years old was your little brother, Sasamaki Haru. The boy who recognized you too looked stunned at you, then hugged you tightly.

"Ahh.. sister." Haru said while hugging you tightly.

You are in the future.