Halfway through high school, everyone begins to seriously consider their future. Kōichi Asakura, who aspires to attend an art school to become a designer, is shocked one day by graffiti scrawled on the wall of an art museum. The artist is Ellen Yamagishi, a left-handed high school student whose talents have been suppressed since a certain incident.

The two eventually come to recognize each other through drawing, and Kōichi embarks on his path to becoming a designer, while Ellen embarks on her path to becoming a painter.