Since I was infertile, I decided to use a sperm bank. I wanted to leave behind some excellent genes, so I asked Mr. Nagai, a donor with an extremely high IQ of 141 and excellent athletic ability. However, Mr. Nagai says that he only uses the timing method of donating sperm during actual sexual intercourse. I think it's okay because they say they're just having loveless and laborious sex, but as a husband, I still find it frustrating to see my wife in the arms of a man she doesn't know...!