Ep. 18: Rondo celebra el éxito mientras Hiiro explora el significado de la dulzura entre el grupo

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Rondo is celebrating a successful show with drinks at a rooftop restaurant when Hiiro asks the group if they have experienced something "sweet" recently, though they fail to provide good answers. After Aoi changes the restaurant's background music, the four picture performing the song and Hiiro realizes they were unable to find anything sweet as they already have the unit. Noticing Tsubaki's gaze and her ordering a drink called a Glad Eye, Hiiro points out the definition of a glad-eye, to her embarrassment. (Source: Wikipedia)