The Yuzuki brothers, consisting of the eldest son, Hayato; the second son, Mikoto; the third son, Minato; and the youngest, Gakuto, have been living together since they lost their parents two years ago.
You've been busy.
Du hast gerade so viel zu tun, Nii-san.
Porque has estado muy ocupado.
Tu as beaucoup de travail.
In questo periodo
 sei sempre impegnato.
Afinal, você está muito atarefado.
Все знают, как ты занят.