Yurika Kurosawa

A man has a wife in different parts of Japan and takes each out to a restaurant when a business trip from the others.

Ami Kurata, a first-year university student who has no athletic ability, suddenly falls in love with a folding bicycle after seeing it in front of a train station. Inspired by her newfound love, she starts saving up to buy a bicycle and to learn cycling.

Growing up with an abusive father, Utsutsu is highly protective of his younger sister Yume. One day, she contracts the strange Pupa virus and begins to sprout grotesque wings and attack both animals and humans.