Stop!! Hibari-kun! #1

The story focuses on Kōsaku Sakamoto, a high school student who goes to live with yakuza boss Ibari Ōzora and his four children—Tsugumi, Tsubame, Hibari and Suzume—after the death of his mother. Kōsaku is shocked to learn that Hibari, who looks and behaves as a girl, was assigned male at birth.

Stop!! Hibari-kun! has been described as achieving a dizzying reality with Hibari by contrasting a girlish exterior with a male interior. The series has been praised for its overall light and pop literary style, and the delicate touch in how Hibari is drawn has been described as so attractive that it makes the reader forget that it is a gag manga. However, the jokes surrounding the yakuza characters have been criticized as extreme and no longer humorous in modern times. The series has been described as having had a hand in paving the way for the J-pop phenomenon.