A fudanshi gets isekai'd into his own BL fantasy and spends the whole thing trying not to become the bottom he spent years reading about. Four minutes of pure genre self-awareness, built for people who already know exactly why this premise is hilarious. By season four, the show isn't trying to convince you it's clever, it's just living in the joke with you.
Kotone's second chance at life in the demon realm continues as absurdly as it began. The fudanshi finds himself still trapped in his arrangement with Nagi, the serpent man who needs him to ascend to dragon status through their increasingly complicated supernatural dynamic. By now, Kotone has perfected his defensive strategies, armed with years of BL manga knowledge and a desperate determination to avoid becoming anyone's submissive love interest, no matter how the ancient magic works against him. The fourth season doubles down on what makes this comedy work: watching a genre-savvy otaku weaponize his fandom expertise against literal otherworldly forces. Nagi remains as persistent as ever, while Kotone's resistance remains as creative and panicked. New complications emerge from the palace's inhabitants, each threat to his independence more ridiculous than the last. The show thrives on the tension between Kotone's genre awareness and a supernatural world that refuses to follow narrative conventions he thought he understood. Comedy comes from his constant spiral of miscalculation, Nagi's relentless pursuit, and the clash between manga fantasy and actual chaos.