Boy x Cat?

When Subaru moves into his new dormitory, he expects a quiet and uneventful transition. Instead, he finds himself unexpectedly paired up as part of what the school refers to as a "Happy Set," a mandatory living arrangement that goes entirely against his personal wishes. Thrust into close quarters with his new roommate, Sei, Subaru must navigate the awkward realities of shared space and forced companionship in an environment he never asked for. The situation is further complicated by a glaring incompatibility between the two roommates. Subaru suffers from a severe allergy to cats, making their presence physically unbearable for him. Sei, on the other hand, harbors a deep and unwavering love for felines. This fundamental clash sets the stage for daily friction, as Subaru struggles to manage his health while dealing with Sei's constant affection for the very animals that make him miserable. With such a stark divide separating them, the prospect of harmony seems distant. As they attempt to coexist under one roof, both young men must confront whether their opposing natures can ever truly align. Whether Subaru and Sei will overcome these obstacles to genuinely become the Happy Set they were designated to be remains an open and uncertain question.