Kanade Sakurai attends late-night art classes but keeps sketching her twin sister, Yukino, instead of finishing her assignments. As Kanade's drawings pile up, she starts questioning whether what she feels for Yukino is ordinary sisterly affection or something more complicated, while first-year Sakuya Kamiyama's obsessive crush on Kanade complicates the picture further. This manga adapts the Candy☆Boy anime, and a seven-chapter side story rounds out the volume with other pairings from the cast.