Yuuki Orie accepts an invitation to Keisuke's home, only to be stunned by the unexpected scene involving his mother. Izumi Remi, already harboring doubts about her master's conduct, learns of his connection to Orie through her friend Korin. Driven by intense jealousy, Remi confronts Orie and draws Korin into the situation, setting the stage for escalating rivalries and passionate entanglements.