Mazome

Marina Hishimori is in charge of the swimming club at her school. She is loved by the younger kids, is a skilled martial artist and reader, has a nice set of eyebrows, and is a great instructor. She hates the male club members who attempt to win by using cunning tactics because she is such a perfect girl. She loves the club, but one of its members has a fatal illness. Unfortunately for her, the only medical professional who can cure the illness is the grandpa of one of the club's male members, whom she despises. A "sexual friendship contract" is signed by Fujimori in return for the costly therapy. Will the sexual friendship contract be able to be broken by the noble girl?