Onzoushi-kun no Konyaku Jijou

To all appearances, Ranzan Kazuomi is just another easygoing university student, spending his nights at boisterous drinking parties and casual mixers. What his peers don't know is that he carries the heavy, unwanted mantle of heir to one of the nation's most powerful conglomerates. That carefully constructed normalcy shatters when his family strong-arms him into an engagement with Houshubana Chitose—his brilliant, dauntingly competent childhood friend and the scion of a rival corporate empire. Intimidated by Chitose's perfection for as long as he can remember, Kazuomi reluctantly agrees to a temporary farce: a fake engagement to placate their ambitious parents, biding time until his rebellious older brother can sway the family's decision. To maintain the charade, they move in together under the innocent guise of being mere roommates, their shared secret a fragile barrier against the expectations closing in around them. The fragile agreement, however, is upended at a lavish party when Kazuomi unwittingly downs a drink laced with a potent aphrodisiac. As the room spins and his composure crumbles, Chitose sweeps in to his rescue—only to publicly announce Kazuomi as his genuine fiancé, stunning the entire gathering. Believing it to be a desperate act of damage control, Kazuomi is wholly unprepared for the fierce sincerity that follows. Behind closed doors, Chitose drops the act entirely, confessing with raw, unguarded intensity that he wants Kazuomi not as a temporary placeholder, but as his true partner. The declaration is sealed with a kiss so unexpectedly tender and consuming that it leaves Kazuomi breathless and utterly disoriented, forcing him to confront a future he never planned for—and feelings he never dared to acknowledge.