At Seishun Academy, love isn’t optional — it’s graded.Every third-year student is assigned a partner in the school’s elite Marriage Practice Program, a curriculum designed to prepare students for future relationships. Live together. Cook together. Act like a married couple.Earn compatibility points.Graduate with a future.For Kisaragi Haruto, a low-profile, calm, and quietly dependable student, romance was never part of the plan.That is… until he’s paired with Saotome Airi — the pink-haired school idol with a sharp tongue, a cute voice, and a very obvious crush on someone else.