Nido Tsuihousareta Boukensha, Geki Rare Skills Kushi shite Bishoujo Gundan wo Ikuseichuu!

Lionel, a tactician who was expelled from his clan due to tangled relationships, visits the adventurer's guild in despair. There, he encounters a trio of beautiful adventurers who are behind on their sponsorship payments. Unable to ignore their plight, Lionel activates his innate nurturing nature and ends up helping them. The three become attached to him, and he ends up forming a new clan with them... No wait, could this be a golden opportunity? By raising these talented girls and making a name for himself, he can get back at those who exiled him! Tactician Lionel's new adventure begins now! (Source: Bunkasha, translated)