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.

Eguchi wanted to create a romantic comedy manga where the main female character is a cross-dressing boy so as to poke fun at the genre.

Complete Edition omnibus collection, which features various revisions to the originally published chapters in addition to newly drawn cover art.

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.

follows Kōsaku Sakamoto, a high school student whose mother tells him on her deathbed to live with her friend and yakuza boss Ibari Ōzora and his family in Tokyo after she dies.

Although Kōsaku is initially unsure about his situation, he is relieved when he meets Ibari's four children: Tsugumi, Tsubame, Hibari and Suzume.

Despite this, Sayuri is instantly enamored by Kōsaku and hires a detective to find out more about him, leading her to discover Hibari's secret.

Ibari agrees to look after Gekijirō Taiga, the son of one of his close friends, who Kōsaku is surprised to learn is a trans man.

Hibari-kun!, he raised the standards he held for his art and began taking more time to draw the chapters.

[14] In addition, Eguchi was very particular about the appearance of his manuscripts, so he never used white-out to correct any drawing errors because he disliked how it looked.

[1][16] After he submitted the chapter's manuscript, Eguchi fled to a hotel and secluded himself for a day, only coming out after Nishimura called him to say that he could not deal with him anymore on a weekly basis.

[18][19] Inspired by Katsuhiro Otomo, Eguchi fought against the established design format for the volumes that at the time was "set in stone" for series serialized in Weekly Shōnen Jump.

Complete Edition omnibus collection, which features various revisions to the originally published chapters in addition to newly drawn cover art.

[1] Not wanting to end the Complete Edition with an abrupt conclusion like he had done before, Eguchi found the storyboard for the final chapter and used it as a basis to newly draw the last five pages he had omitted 27 years earlier.

[30][31][32] In 2010, Eguchi did not rule out the possibility of someday drawing a continuation of the series, but he said it probably would not be a story under the title Stop!!

[35] The screenplay was written by: Shigeru Yanagawa, Tokio Tsuchiya, Hiroshi Toda, Tomomi Tsutsui, Takeshi Shudo and Yumi Asano.

The character design used in the anime was provided by Yoshinori Kanemori, and the music was composed by Kōji Nishimura.

as achieving a "dizzying reality" with Hibari "by contrasting a girlish exterior with a male interior", and went on to say that the series could be seen as a "continuation of the sartorial perversion lineage" of cross-dressing characters.

Nakano largely attributes this successful combination to Eguchi's ability to draw girls that are not only cute, but also have good taste and sex appeal.

I used to drag my mom around for hours to just buy one T-shirt, but instead of getting fashion tips from the TV or from magazines, I got it from Hibari-kun.

[42] In writing for the magazine Cyzo, manga critic Jyamao wrote that because of its overall light and pop literary style, none of the indecency or immorality cross-dressing may engender comes through, which he surmises is why the anime was able to air during prime time.

[44] Manga commentator Nobunaga Minami lauded Eguchi for being a pioneer in drawing characters with a high fashion sense in Stop!!

Eguchi's attention to detail is also praised, such as drawing Kōsaku wearing Chuck Taylor All-Stars in one chapter.