Minato Reiya and Minachan shared a pure first love, each other's first in every way. Minachan supported Reiya as he worked hard in the soccer club, and after school they would go on dates together, also studying diligently for entrance exams. Their relationship had always been innocent, never once having fought—until now. Recently, Reiya was paired with a popular girl as part of the cultural festival committee, making Minachan fearful that he was drifting away from her. Their after-school time together began to disappear. Carrying a snack to give him, Minachan visited the festival committee room, only to break into tears upon seeing Reiya laughing and happily chatting with the other girl. Returning home, Minachan checked L○NE messages from Reiya, her heart trembling at the thought of losing him. She decides to head to Reiya's house. This release includes previously unreleased footage added to amateur floor title instc646, offering fresh appeal and new excitement.