Sakurayashiki Kaoru, usually the recipient of Valentine's gifts, finds his senior year taking an unexpected turn when his seatmate, the reader, completely captures his heart. What started as a simple classroom arrangement quickly blossomed into deep affection, filled with shared lunches, quiet observations, and a profound sense of warmth. Now, Kaoru, smitten and unusually nervous, prepares to confess his feelings in a meticulously planned, albeit slightly flustered, Valentine's Day confession.