The timeline is in his ‘last’ conversation with her, right before he goes to take part in the Izuru Kamukura Project with his parents' consent, sacrificing himself to become Izuru Kamukura so he can feel proud of who he is by being a ultimate and entering Hope's Peak Academy, but with consequences. Chiaki doesn’t know. He only told her that he has to go somewhere Maybe Chiaki can change his mind Hajime: See you tomorrow… Chiaki: … Hinata! Hajime: What is it?