my parents decided to go on a trip just the two of them, and i was left to look after the house alone. i was thinking of enjoying the freedom of being able to do anything, eat anything, play games as much as i want, and masturbate anytime, anywhere, when mei-san, my mother's best friend, ran away from home after fighting with her husband, and a cohabitation life started unexpectedly. after a while, mei-san found out that i was a premature ejaculation m man. then, mei-san with a smile that looked like she had found prey was staring at me…