Ryoma and the rest of the freshmen go to where Kachiro's father works as a tennis coach. However, they find trouble with Sasabe again, but this time, Sasabe's father is the bigger problem. In order to teach him a lesson, Ryoma asks the father to teach him tennis. Though Sasabe warns his father not to, the latter is more than willing to do so. In their practice match, the father ends up pulling a muscle after Ryoma shows him just how much he should have listened to Kachiro's father's advice about warming up first.