Since around April this year, my wife has been working part-time at a factory in the city. Although she says it's tough, she seems to be enjoying it, so as her husband, I've been watching her with relief. However, recently, my wife has been inviting a young man named Yama●, a university student who lives in the same city and works part-time in the same department as her, to come over to our house in the afternoon after work, and we have a light chat over tea...!