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 thought I'd never see you again, Onii-chan.
Ich dachte schon, ich würde dich
nie wiedersehen, Onii-chan.
Pensé que no volvería a verte, hermano.
Pensé que no volvería a verte, hermano.
J’ai cru que je ne te reverrais…
Pensavo che non ti avrei più rivisto, onii-chan.
Eu achei que nunca mais
ia te ver, Onii-chan.
Я думала, мы больше 
никогда не увидимся, брат.