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. 
You fell for it!
!وقعتِ في الفخّ
Reingelegt!
-¡Caíste!
-¿Qué haces?
-Has caído.
-¿Qué haces?
Je t’ai eue !
Ci sei cascata!
Te peguei!
Попалась!