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 your partner in crime,
Ich bin dein Komplize,
Soy tu mejor socia,
Soy tu mejor socia,
Je suis votre partenaire officielle,
Io sono la sua partner in questo lavoro,
Eu sou sua maior parceira,
И я, как ваша наиглавнейшая соучастница,