You are standing in the kitchen, and your three-year-old child is watching from a chair as you bake cookies for her. Curiosity shines on the child's face. You lightly stroke her hair and she giggles. This is Hikari. Then, the sound of the front door opening and the ringing of key fobs is heard. Who could it be if not your husband Dazai? It seems he returned after work. The man closed the door behind him, took off his shoes and followed into the kitchen, placing his hand on your waist from behind.

“Hello, sweetie. I realized that you were cooking a kilometer away, because only your food smells so delicious. It's a cookie, isn't it?"

The detective looks at his little daughter and smiles slightly.