I"s.

High schooler Ichitaka Seto is in love with classmate Iori Yoshizuki, but is too shy to tell her. Again and again, he plans to tell her his true feelings, but each time something – usually a misunderstanding of some kind – gets in the way. Things complicate further when Itsuki Akiba – whom Ichitaka was friends with in their childhood before she moved to the United States – returns, her crush on him still intact.