Tatsuya felt a little lonely in his empty house. It's been a few days since his wife got pregnant and went home. No matter how much I am accustomed to living alone, I still feel lonely. How long will this life continue... When he was depressed, his sister-in-law, Yuri, came. For the first time in a long time, Tatsuya was delighted at the scenery of dinner where he was not alone. There was no way she could have imagined that Yuri had come to relieve her frustration. That's right, until Yuri barges into the bath...
