Quick answer — Keiji Inai worked on Is It Wrong to Try to Pick Up Girls in a Dungeon? IV Part 2 (Music), Is It Wrong To Try To Pick Up Girls in a Dungeon? V (Music), Is It Wrong to Try to Pick Up Girls in a Dungeon? IV (Music) and 30 more anime.
Keiji Inai worked on Is It Wrong to Try to Pick Up Girls in a Dungeon? IV Part 2 (Music), Is It Wrong To Try To Pick Up Girls in a Dungeon? V (Music), Is It Wrong to Try to Pick Up Girls in a Dungeon? IV (Music), Nura: Rise of the Yokai Clan - Demon Capital (Music), Kenichi: The Mightiest Disciple: The Attack of Darkness (Music), Is It Wrong to Try to Pick Up Girls in a Dungeon? III (Music), Alderamin on the Sky (Music), Is It Wrong to Try to Pick Up Girls in a Dungeon? (Music) and 25 more.