The everyday Sanyo family gets an unexpected surprise in the shape of a new lodger-Hattori is a ninja boy who has come down from the Iga mountains to attend normal school. Befriending Kenichi Sanyo, who is the same age as he, Hattori starts attending school undercover, occasionally accompanied by his brother, Shinzo, Shishimaru the ninja dog, and Kenichi's girlfriend, Yumeko. The gang is also threatened by the rival Koga ninja, Kemumaki, and his evil sidekick, Kagechiyo the Shadow-cat. (Source: The Anime Encyclopedia)

Type: TV

Country: Japan

Premiered: Spring 1981

Date aired: Apr 16, 2026 to ?

Broadcast: Thursdays at 00:55 JST

Status: finished

Source: Original

Genres: Comedy, Slice of Life

Scores: 7 / 222 reviews

Duration: 3 min

Episodes: 9 / ?