It's been three months since Haru's dream to live under the same roof with all three of his brothers came true. However, the situation at the Kaidou household suddenly becomes stormy when Haruko announces she's taking Ren back to Switzerland with her. Even after Ren hears about Haruko's secret loneliness from Miki, he still wishes to stay in Japan as long as Haru wants him. But unable to express his desire in words, Ren continues to remain "just a brother" to Haru...
Come and have even more fun 
with your naughty brother.
Okay, okay. Dein perverser, großer Bruder
macht jetzt mit dir noch schönere Dinge.
Déjame divertirme
más con mi travieso hermano.
Déjame divertirme
más con mi travieso hermano.
Allez, c’est l’heure de faire 
des choses bien plus sympa
Su, su, è ora di divertirsi un po'
con quello sporcaccione di tuo fratello.
Venha se divertir com 
 seu irmão safadinho.