After Ryouta is promoted to a higher badminton Club, Nagisa is tasked with taking him there. As the older sister she tries to show him support and is really excited, but this only causes him to try to avoid her.
校内バドミントン大会で優勝した亮太は、地元のクラブチームの練習に参加することになった。大喜びのなぎさは、ほのかやひかりも誘って応援に駆けつける。柴田くんという友達もでき、自分のペースで練習をしていた亮太は、なぎさのあまりにも熱の入った応援に調子を崩してしまう。練習試合の相手も強敵で…。
Nagisa accompagna suo fratello a una competizione di Badminton. Nagisa cerca di incorragiarlo facendo il tifo, ma esagera e lo sconcentra.
Ryouta participa de uma partida de badminton, e Nagisa convida Honoka e Hikari para torcer por ele junto dela.