Akutsu Masatora transfers to a new school, where he falls for the beautiful and kind Amane Lily on sight. But Akutsu has a dark secret, and a mission... and Lily might be more than meets the eye, as well!
What is this bittersweet 
emotion filling my chest?
ما هذا الشّعور الدّافئ الّذي يملأ صدري؟
¿Qué es esta sensación tan agridulce?
¿Qué es esta sensación tan agridulce?
Cos'è questa sensazione agrodolce
che pervade il mio cuore?
O que é essa emoção agridoce
dentro do meu peito?!
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