When Rikkai Dai's Akaya Kirihara accidentally stops at the wrong bus stop, he ends up visiting Seishun Academy. While he causes trouble for the Seigaku regulars during practice, the freshmen are stuck doing classroom duties. Horio then gets into trouble with an upperclassman, who is also a basketball player. In order to protect him, Ryoma and the basketball player have a free throw contest, with Ryoma using a tennis ball for a basketball and a broom for a racket. When he wins, he forces the upperclassman to do his remaining classroom duties. (thetvdb.com)