due to my male infertility, i decided to use a sperm bank. since i want to leave behind excellent genes, i requested mr. kobayashi, who has an iq of 141 and exceptional athletic ability. however, mr. kobayashi only provides sperm through actual intercourse using the timing method. although he says it's just a loveless, mechanical sex act, as her husband, i still feel bitter that my wife is being embraced by a stranger.