Histoire
A spin-off manga featuring Iruma Suzuki, Shax Lead, and Soi Purson - the three of which make up the titular "Boku Alliance" - as they play various Netherworld video games.
Synopsis via AniList (en anglais).
Manga
Mairimashita! Iruma-kun: Boku Doumei no Game-michi
ComedyFantasy
