The first time I left my wife

It's been a week since my wife got pregnant and went home. It was Kentaro who enjoyed living alone after a long time, but was feeling loneliness in the quiet house which was not popular. My sister-in-law Miho came to see the situation at that time. Miho's real purpose was to dissolve frustration in Kentaro, although he was unable to bear loneliness. Kentaro is completely cheated and is taking a bath. There is "back" and Miho comes in...