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...
Well, because I love 
little sisters, of course.
Nun, weil ich kleine
Schwestern liebe, natürlich.
Bueno, es porque amo a las hermanitas.
Bueno, es porque amo a las hermanitas.
Beh, perché adoro le sorelline, ovviamente.
Bom, foi porque eu amo irmãzinhas, claro.
Естественно, потому что...
я люблю младших сестёр.