Saki Kobari

When a massive alien flower known as "Darol" unexpectedly erupts in a deadly event, unleashing monstrous creatures that decimate the population of Japan, Rita is caught in the destruction—and killed. But then she wakes up again. And again. Caught in an endless time loop, Rita must navigate the trauma and repetition of death until she crosses paths with Keiji, a shy young man trapped in the same cycle. Together, they fight to break free from the loop and find meaning in the chaos around them.

San and Mayu are two schoolgirls living in Okinawa during the closing months of the Pacific War. Together with their classmates, the two friends are drafted into the war effort as nurses for wounded soldiers. When ordered to die for their country, the remaining members of the group escape only to face the harsh environment of a tropical paradise that has become a hellish battlefield.

Denji is a young man who makes a pact with a demon and ends up working as a Devil Hunter hunting devils.