Oshi No Ko Episode 1: Mother and Children

Doctor Gorou Amamiya watches a DVD in a patient's room in a hospital revolving around his favorite idol Ai of B-Komachi until a nurse politely rebukes him over it. The nurse then informs Gorou that Ai has gone on hiatus due to poor health, which he is devastated to hear. Gorou gets asked why he is so obsessed with Ai, and he recounts when he first started as a doctor in the hospital about a patient named Sarina who changed his life forever.