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 sho shour! But it's 
also so sweet and delicious!
!حامضة جدّاً! لكنّها حلوة ولذيذة أيضاً
Ischt dasch schauer!
Aber auch süß und lecker!
C’est vachement acide !
Mais ensuite, c’est super bon !
È aspro!
É azedo!
Так кисло! Но сладко и вкусно!