Reika, the student council president and heiress to the Houjou foundation, greets Shungo, but becomes furious when Mayu unknowingly calls her a rich loser girl. After checking with Shungo and Mayu's siblings, she challenges Mayu to a series of contests. Although Mayu easily wins the first two rounds, Reika asks for them to be nullfied for the last round where she alone has to seduce Shungo. However, she fails to do so, and ends up becoming their live-in maid.