[PC][2020s] Itch.io visual novel about a girl trying to confess to her crush. A timer is in the corner and when it hits zero a bomb kills her and everyone in the country

I think the style was kind of a blend between realism and anime? I do definitely remember it being on itch. It states the premise upfront on its page so you go in knowing that everyone will die in the end. You play through normal life stuff while a timer ticks and as soon as it hits zero you see everyone being bombed in a flash of white, while the narration describes the weapon as some sort of time bomb dragging out their agony for centuries. Then the game ends.

Probably a small indie project, I don't think it was made by a team or anything and it was really short. I think there might be a youtube playthrough out there, but I can't find it.