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. 
Humans are wonderful because 
they have a heart and emotions.
البشر رائعون لأنّ لديهم قلب وعواطف
Ein Herz und Gefühle sind das,
was uns Menschen erst so großartig macht.
Lo que hace fascinantes
a los humanos es nuestro corazón.
Lo que hace fascinantes
a los humanos es nuestro corazón.
Nos émotions
nous rendent capables du meilleur.
Ciò che rende gli umani speciali
Os seres humanos são incríveis
porque têm corações e emoções.
Люди такие удивительные,
потому что обладают чувствами.