Kazuto Mikado, born into wealth and influence, notices Momiji Shiromiya at school and develops an interest in her. He orchestrates her move into his home as a maid. Their proximity fosters a deepening relationship, culminating in a private encounter where Kazuto becomes Momiji's first sexual partner. This intimacy fundamentally alters their dynamic. The ensuing narrative examines their evolving interactions within the Mikado household's structured environment under these new conditions.