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...
I'm here to keep an eye on him to make 
sure he doesn't try anything with my sister.
Ich bin hier, um ihn im Auge zu behalten,
damit er ja nichts mit meiner Schwester anstellt.
Vine a vigilar que no le hiciera
nada raro a mi hermana.
Vine a vigilar que no le hiciera
nada raro a mi hermana.
Je suis venue surveiller
qu’il ne fasse rien de louche à ma sœur.
Sono qui per controllare che
non faccia niente di strano a mia sorella!
Estou aqui pra garantir que ele
não faça nada estranho com ela.
Я не могла оставить любимую
сестру наедине с кем-то вроде него.