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:
One of the more absurd plot points involves Nagoya (the rooster), who is revealed to be an alien from a "Chicken Planet" here to reclaim Haru (Harunosuke) as Prince Chicken. Cast and Reimagined Roles The OVA features the original voice cast from the anime: Tonari no Kaibutsu-kun: Tonari no Gokudou-kun E...
It serves as a fun "what-if" scenario for fans who enjoyed the chemistry between Shizuku and Haru in the main series. Instead of the usual modern classroom, the story