This is a show that makes you laugh and then immediately check whether you should be laughing. Ranmaru is a 450-year-old vampire with one very specific vintage on his palate, 18-year-old virgin blood, which means his entire arc is a three-year waiting game and a full-time cockblocking career against a 15-year-old with a crush. Reviewers keep reaching for Hisoka, and they're right: it's the same energy of a monster patiently letting the fruit ripen, except played as pure slapstick. The comedy runs on misunderstandings, self-aware romcom cliches getting detonated in real time, and Ranmaru treating Rihito's love life like a national security threat. Nobody here has hidden depths, and the show knows it, the characters exist to serve the bit and the bit is relentless. If the predatory premise reads as a punchline to you, you'll be wheezing. If it doesn't, you'll bail by episode two, and that's a fair trade.
Fifteen-year-old Rihito's life takes an absurd turn when he catches feelings for his classmate. The problem: an ancient vampire named Banban becomes obsessed with him, convinced that Rihito's untouched state is the rarest delicacy in existence. But rather than drain him dry, Banban has other plans. She's determined to guard his virginity like it's the most precious treasure on earth, interfering in his romantic life at every turn. What starts as comedic chaos spirals into something messier when genuine feelings develop between them. Rihito finds himself trapped between pursuing his crush and dealing with an immortal guardian who alternates between protective and possessive. Meanwhile, Banban grapples with centuries of loneliness colliding against unexpected attachment. The show balances ridiculous supernatural hijinks with surprisingly sincere emotional beats. It's part romantic comedy, part supernatural farce, all wrapped around the question of whether you can fall for someone whose entire existence centers on keeping you from falling for anyone else. Expect slapstick humor, gothic atmosphere, and the kind of bizarre chemistry that only happens when a centuries-old vampire becomes invested in a teenage boy's dating life.