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 get up in the morning 
and flirt with my little sister,
Ich stehe morgens auf,
flirte mit meiner kleinen Schwester …
Me despierto, flirteo con mi hermanita
Me despierto, tonteo con mi hermanita
Le matin, je me lève
et je flirte avec ma sœur.
Mi sveglio la mattina e flirto con la mia sorellina,
Eu acordo, flerto com minha irmãzinha,
Я просыпаюсь и заигрываю с сестрой,