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...
Why? Because my little sister's
 a cutie pie, obviously.
Warum? Na, weil sie
so ein Sahneschnittchen ist.
Porque mi hermanita es linda, claro.
Porque es muy mona, claro.
À votre avis ?
Parce qu’elle est trop mignonne.
Perché? È ovvio, perché la mia sorellina
è troppo carina.
Porque minha irmãzinha é fofa, claro.
А что? Ведь моя сестра —
милейшее существо в мире.