Darling ni wa Himitsu!

Maki is married to Akira, a kind, stylish, and laid-back older novelist. Their relationship began with instant attraction, and they now share a joyful marriage. However, Maki has concealed a part of her history: her rebellious and unruly behavior during her teenage years. She has maintained a composed and well-mannered image, making it difficult to reveal her past. Fearing that Akira might lose interest in her if he discovered the truth, she continues to keep it hidden. Her secret becomes complicated when Yuji, her former boyfriend, unexpectedly appears as Akira's editor.