Risa and Takashi grew up like family. Risa has supported Takashi every day, stepping in as a mother figure since his mother's passing, and over time he has become someone irreplaceable to her. Amid this complex bond, Risa finds herself developing romantic feelings for Takashi's father. Just as she resolves to get married, the truth about his true feelings comes to light. A story woven with love, misunderstanding, and deep, entangled emotions.