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...
But it's also necessary, 
since I'm living in Japan.
Da ich in Japan bin,
ist das aber notwendig.
También es necesario si vivo en Japón.
También es necesario si vivo en Japón.
Mais comme je vis au Japon, 
j’ai besoin de ce cours.
Però dovrò pur impararlo,
dato che vivo in Giappone.
Elas são necessárias, já que 
 estou vivendo no Japão.