My friend's mother ~Hayato's mother who is the ace of the baseball team~

His friend Hayato, who belongs to the same baseball club, is an ace and No. 4, is good at studying, and is clearly different from Taro, who can't even sit on the bench. Moreover, Hayato's mother, Kazuko Kano, is a peerless beauty, and Taro sometimes feels subservient, wondering why they are so different from each other. However, Hayato seems to have a problem as well, and while Kazuko Kano consults him about it, Taro and Kazuko Kano end up having a man-woman relationship. Taro and Kazuko Kano's love grows steadily despite their age difference...