on a rainy day, Suguru goes to rooftop of unfinished university to check if this place is good to end his life, but there he meets a young man his age Satoru.

They say the end of the world started in a military lab. Some poor bastard who'd agreed to take part in one of those experiments-for-cash programs, signing his body and blood away, all the in the name of science, just so he could afford to buy food for his kids. 'They were all meant to be given placebos', they said. Except he wasn't given a placebo. He was given something else, something terrible, whether on purpose or by accident, I guess we'll never know, but what I do know is that it never started with him. It started with her. With Alice. My Alice.