About “Stop!! Hibari-kun!”
"Stop!! Hibari-kun!" is a Japanese manga series written and illustrated by Hisashi Eguchi. It was serialized in Shueisha's Weekly Shōnen Jump magazine from October 1981 to November 1983 and later collected in four tankōbon volumes. The series was adapted into a 35-episode anime by Toei Animation, which aired on Fuji Television from May 1983 to January 1984. The story follows Kōsaku Sakamoto, a high school student who moves in with yakuza boss Ibari Ōzora and his four children—Tsugumi, Tsubame, Hibari, and Suzume—after his mother dies. Kōsaku is surprised to discover that Hibari, who appears and acts like a girl, was assigned male at birth. (Summary adapted from Wikipedia, CC BY-SA 4.0.)
Some summaries adapted from Wikipedia, CC BY-SA 4.0.