End of the World Camp

A love story with a junior that begins from camping on the weekend!?

Kawaguchi, a boy from the soccer club, goes camping on a fine weekend!
In the middle of living "alone" for "several days", he meets a certain girl who's his junior and they end up camping together...!?

(Source: Niconico Seiga)

Note: Shuumatsu is a word that can either mean "weekend" (週末) or "end of the world" (終末) so this title is a word play on both given the deliberate lack of kanji on the title.