Cuckolded female manager - pinch hitter in the right hand is the ace's girlfriend

First collaboration with a popular youth doujin work! ! Natsumi is a female manager who dates baseball club ace Yuma. One day, the two of them accidentally caused an accident, causing an injury to the reserve pitcher Leo. Feeling guilty, Natsumi heads to Leo's house alone and is forced to help with masturbation in place of her injured right hand. During the important time of the summer tournament, he didn't want to cause trouble for him, so he continued to escalate Leo's demands, but gradually he began to want him...