After moving in, Rui and Koji’s closeness stirs Haru’s hidden desires. Jealousy gives way to a forbidden attraction, and she seduces Koji with intense, raw passion. Their secret, heated encounters deepen, filled with longing and betrayal, as Rui remains oblivious. Haru’s craving grows, and Koji surrenders to her insistent, erotic demands, their bodies entwined in breathless ecstasy, sealing a whispered affair behind closed doors.