The protagonist of this story, Hikaru Sakaki, is a second-year student at Kirigamine Private High School. Although he became the head of the photography club this spring, he finds that he is the only member of the club. As he struggles to save the club from disbandment, three girls appear before him.

What do they see behind the camera?
Each of their feelings gently overlap and create colors.

"Hey, in what color do you see me?"

(Translated from Official Site)