In order to prevent the novel's heroine from being revised, Yuu must perfect his love of little sister moe. Yuu and Suzuka both attend Sakura's radio program as guests, and Yuu begins flirting with Suzuka while on air as part of his training to become moe for little sisters, but...
Onii-chan, you already
 find little sisters moe.
Onii-chan, du findest kleine Schwestern
bereits moe.
Hermano, tienes suficiente
moe de hermanitas.
Hermano, tienes suficiente
moe de hermanitas.
Tu es déjà en adoration
devant les petites sœurs.
Onii-chan, a te piace già il moe delle sorelline.
Onii-chan, você já entende
muito sobre o moe de irmãs.
Брат, ты уже понял 
прелесть младших сестёр.