"Stop!! Hibari-kun!" is a manga series created by Hisashi Eguchi, serialized from 1981 to 1983. The story centers around Kōsaku Sakamoto, a high school student who moves to Tokyo after the death of his mother. He is taken in by the Ōzora family, a yakuza clan led by the patriarch Ryūzō Ōzora. Kōsaku quickly becomes entangled in the family’s eccentric dynamics, particularly through his interactions with Hibari Ōzora, Ryūzō’s youngest child.

Hibari is a strikingly beautiful and confident individual who identifies as a girl, despite being assigned male at birth. Hibari’s gender identity becomes a central theme, as she navigates her life with unwavering self-assurance, often challenging societal norms and expectations. Kōsaku, initially shocked by Hibari’s identity, gradually develops a complex relationship with her, oscillating between admiration, confusion, and romantic tension. The series explores their evolving dynamic alongside the comedic and dramatic situations that arise from their interactions.

The narrative is driven by a mix of humor, romance, and social commentary, often addressing themes of gender identity, family, and acceptance. Hibari’s bold personality and refusal to conform to traditional gender roles make her a compelling and progressive character for the time. The Ōzora family’s yakuza background adds a layer of absurdity and action to the story, with Ryūzō and his other children frequently involving Kōsaku in their chaotic and often dangerous escapades.

Supporting characters, such as Hibari’s siblings and Kōsaku’s classmates, contribute to the series’ comedic and dramatic elements. Hibari’s older brother, Torao, is particularly notable for his over-the-top antics and rivalry with Kōsaku. The series balances lighthearted moments with more serious undertones, creating a narrative that is both entertaining and thought-provoking. Through its exploration of Hibari’s identity and Kōsaku’s growth, "Stop!! Hibari-kun!" remains a distinctive and influential work in the manga genre.