A comedic spin-off about the off-duty activities of Defense Corps members.

A girl who has decided to euthanize herself and a boy who is still mourning a loved one. A new sensation coming-of-age story about two people who "live life to the fullest"! (Source: Tonari no Young Jump, translated)

Centuries ago, Earth was struck by a meteorite, leading to a loss of habitable space. In response, humanity ascended and developed their way of life upwards on the remaining land.