Quartet, Part 1.The first year students participate in the Quartet, a test for four-person teams, with Akari teaming up with Shino, Raika, and Kirin. Their first match is scheduled against Urara Takachiko, a rich girl who humiliated Akari in the past, whose team also includes Hina and twins Yuyu and Yaya Aizawa. The girls, along with Akari's younger sister Nonoka, spend the weekend at Shino's house to prepare themselves for the Quartet, with Riko giving them a training regime to work with...