With 10 days left before the world ends, a man’s solitary plans are ruined when he unexpectedly runs into his ex-boyfriend.

The story of their breakup: Ritsu teaches Masumi about physical intimacy, but Masumi falls emotionally. Ritsu cheats and blackmails him, leading to their breakup.

A troubled teen bonds with Ritsu and Masumi. Ritsu, feeling guilty, promises to stay faithful to Masumi in their last 7 days.

Masumi struggles with helping his abusive mother. Ritsu offers an ultimatum, and Masumi chooses to let her be alone.

Yuma meets Meguru, a girl resembling his late beloved Idol. As she explores her sexual identity, they discuss self-worth amid unwanted attention.

Ritsu, ashamed of his past, wants to make amends before it's too late. The group channels positive energy to deflect the earth-ending meteorite.