Supplementary Lesson in the Clubroom

After failing her English pop quiz, Rikka takes a supplementary lesson from Nanase Tsukumo in the clubroom, while Yūta, Shinka, Kumin, Sanae, and Makoto Isshiki take watch. Nanase even implements the use of "translating" the name of Rikka's umbrella, Schwarz Sechs Perfect Customize Guerzoniansus, into the supplementary lesson.