It serves as a fun "what-if" scenario for fans who enjoyed the chemistry between Shizuku and Haru in the main series.
A historical town where various clans or groups interact.
Instead of the usual modern classroom, the story takes place in the Edo period. The characters take on roles reminiscent of a "Gokudou" (yakuza/gangster) or samurai-style drama:
While the original series is a slice-of-life romantic comedy, this OVA leans heavily into surreal humor and historical parody.