Was Natsuki's first love, Atri? His beautiful childhood memories are gradually being overwritten. Despite his unwillingness to admit it was her the facts around him are lining up to force him to, but he continues to deny it. 
It's because it's for you, Natsuki!
!لأنّني أفعل ذلك لأجلك يا ناتسكي
Für dich hab ich mir Mühe gegeben.
Lo hago por ti.
Lo hago por ti.
Pour toi, je me surpasse.
È perché lo faccio per te, signor Natsuki!
É porque é para você, Natsuki.
Старалась ради вас, Нацки!