Originally published in Ribon 2018-11, compiled later as an extra of Acro Trip's volume 2.

The "Heavenly Demon", a legend born only once in ten thousand years. Two geniuses have emerged in the same era. Among them, who is the true Heavenly Demon? Will they stand together as allies, or face off as sworn enemies? (Source: Naver, translated)

Pairing: Yamamoto x Hibari - 8018 - AU An Alternate Universe doujinshi set in the Taishou era: One day while browsing through a bookstore, Yamamoto meets Hibari, a beautiful young man who works as a Kagema (a male prositute). ___ Reprinted in [no stoic](https://www.mangaupdates.com/series.html?id=48326)

Pairing: Yamamoto x Hibari - 8018 A chance encounter leads to Hibari agreeing to answer Yamamoto's questions about his favorite things. ___ Reprinted in: - [Bambino Machineguns](https://www.mangaupdates.com/series.html?id=56337) (volume 5) - [Night & Day](https://www.mangaupdates.com/series.html?id=48435)

Pairing: Yamamoto x Hibari - 8018 - AU Loosely based on the 2005 movie, *Mr & Mrs Smith*. However, instead of a married couple, in Yoneda Kou's version, Yamamoto and Hibari play rival hitmen who meet by chance, neither one aware of the other's profession. But like the movie, expect to see a lot of sexual tension and hardcore hitman action! ___ Reprinted in [no stoic](https://www.mangaupdates.com/series.html?id=48326)

Pairing: Yamamoto x Hibari When Yamamoto's good friend is killed, he demands an explanation from Reborn of who the killer was and why. ___ Reprinted in: - バンビーノマシンガンズ 番外編 Sweet10 2 - [Night & Day](https://www.mangaupdates.com/series.html?id=48435)

Collected reprints of the earlier volumes of Hidoku Shinai de with new extras. Volume 3 Extra "I own a puppy" has been scanlated so far.

*Note: Published in the special booklet "Kowai Ribon" included in the July 2025 issue of Ribon magazine.*

Pairing: Yamamato x Hibari While on a business trip together, Yamamoto ponders the wild rumors he's heard about Hibari. ___ Reprinted in: - 雲の守護者 萌え本 - [Night & Day](https://www.mangaupdates.com/series.html?id=48435)

Charles, the marquis’ son, lost his mother and coldly treated his father’s new wife and his younger stepbrothers, Jade and Lien. This leads to his tragic and untimely death in a chain of misfortune. However, when he awakens after his supposed death, he finds himself back in the past, before meeting his stepbrothers. Determined not to follow the same miserable path, he decides to cherish them this time. As a result, his stepbrothers become deeply devoted to him—!? (Source: AlphaPolis, translated)

Read to see the overlord, the heavenly demon that will wake up the chaos in the world to make it his crown… **Original Webtoon:** [KakaoPage](https://page.kakao.com/content/59874000), [Daum](https://webtoon.kakao.com/content/%EC%B2%9C%EB%A7%88%EB%8B%98-%EC%B2%9C%ED%95%98%EB%A5%BC-%EB%92%A4%EC%A7%91%EC%96%B4-%EB%86%93%EC%9C%BC%EC%85%A8%EB%8B%A4/3193) **Official Translations:** [Japanese](https://jp.piccoma.com/web/product/156095)