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'll prove that I'm the one 
who can help Yuu the most.
Ich werde beweisen,
dass ich Yuu am nützlichsten bin.
Probaré que soy la más útil para Yuu.
Demostraré que soy la más útil para Yuu.
Je vais prouver
que je suis la plus utile à Yû.
Così vi dimostrerò che sono io
la persona più utile per Yuu.
Eu vou provar que eu sou
a que mais pode ajudá-lo.
Вот увидите, моя помощь 
окажется самой ценной.