After losing her beloved mother, schoolgirl Mirai develops a strong dependency on Maki, the housekeeper hired to care for her. Projecting her feelings for her late mother onto Maki, Mirai begins to adore her deeply, yet gradually adopts a controlling attitude. Understanding Mirai's emotions, Maki embraces her while gently addressing the hidden sorrow and loneliness within her heart, engaging with her in various intimate ways. As Maki slowly draws out Mirai's inner feelings and deeply stirs her emotions, their bond grows increasingly intense. Mirai surrenders her heart to Maki, craving her presence. As a result, Mirai becomes deeply dependent, alternately blaming and loving Maki. Maki's warmth and tenderness heal Mirai's soul, forging an ever-deeper connection between them.