Heart Mark Oome

Think of the most forgettable high school guy you can imagine — he accidentally triggers a supernatural aphrodisiac effect, and suddenly every girl in his orbit — the uptight student council president, the childhood friend who normally can't stand him — they all get literal heart shapes glowing in their eyes and lose any sense of restraint. That's the setup for Heart Mark Oome, a 2026 OVA from T-Rex based on a manga, and it knows exactly what it is. There's no slow-burn romance here, no "will they or won't they" tension. The premise exists to skip all of that and drop you straight into chaotic harem territory where the comedy comes from this poor dude trying to keep the whole situation under wraps while the school goes on around him like nothing's happening. The signature visual gimmick — those glowing heart-pupil animations — gives the whole thing a distinct, almost hypnotic aesthetic that sets it apart from similar titles. The tone stays light and upbeat throughout, leaning into absurdity rather than anything heavy. If you've watched Mankitsu Happening or Kanojo x Kanojo x Kanojo and enjoyed the easygoing harem energy, this hits the same notes with a fresh coat of paint. Fans of Fella Pure will also find familiar ground here. It's pure wish-fulfillment comfort food, no pretense attached — just a goofy premise played completely straight with solid production behind it.