Kanojo wa Uso wo AishisugiteruBướm trong sương mù; Kanojo wa Uso o Aishisugiteru; Liebeslügen (deutsch); Lovely Love Lie (French); Pequeñas Mentiras Piadosas; The Liar and His Lover; รักวุ่นวายของนายตัวป่วน (ไทย); カノジョは嘘を愛しすぎてる; 女友为这谎言而狂; 她愛上了我的謊; 迷雾中的蝴蝶

Ogasawara Aki is the reclusive, idealistic composer of the popular band Crude Play. Discontented with his life and with no drive to succeed, he meets Riko, the 16-year-old grocer's daughter in a band consisting of her childhood friends, and asks her to be his girlfriend on a whim. Riko, young and innocent, agrees immediately, but worries about her new boyfriend, whom she suspects has just broken up with a woman he cared very much for.