A shy, sensitive introverted college freshman with no romantic experience has long secretly harbored a crush on the most admired male god on campus. At a campus party, she falls victim to a vicious prank. Her private secret is exposed in public, turning her into the laughingstock of the whole gathering and subjecting her to extreme public humiliation. Her childhood‑best‑friend‑turned‑roommate, who has quietly looked out for her, steps in to save her and preserve her dignity. He publicly lies that he took her virginity and shields her by kissing her on the spot to silence the gossip. To help her bravely pursue her crush and get over her lack of romantic experience, the boy volunteers to be her exclusive love mentor. He guides her through hands‑on lessons on romantic hints, physical intimacy and close‑quarter interactions to teach her dating skills. Through days of close‑knit tutoring and constant companionship, the two cross the boundary of pure friendship. Long‑hidden feelings quietly blossom, and they have long become each other’s irreplaceable fondness.