Kotatsu Neko is adapted from the 2006 Japanese live‑action film of the same title, a science‑fiction/fantasy romance. The story takes place in a Tokyo neighborhood where two cats live beneath a kotatsu. Shito, a girlish white cat, and Zero, a cool black cat, share the space. Their owner, Rei “Junior” Fujisaki, is a third‑year middle‑school hikikomori who is obsessed with games. He has a crush on a girl in his class but cannot bring himself to confess his feelings. Shito also harbors a secret, one‑sided affection.