Tsuki ha Higashi ni Hi ha Nishi ni: Operation Sanctuary - S01

Naoki Kuzumi is a high school junior who lost his parents in an accident five years ago and now lives with his aunt, uncle, and cousin Matsuri. His life seems ordinary, except for the gaps in his childhood memories. One day, while napping on a bench, a redheaded girl named Mikoto suddenly drops from the sky onto him. She insists he’s her younger brother, though he doesn’t recognize her. Naoki’s present era serves as a refuge for people from the future, where a devastating disease has spread unchecked. Mikoto traveled back in time after learning her brother Yuusuke had been sent to Naoki’s era for safety.