Luka is the main protagonist of the doujinshi game [[Mon-musu Quest!]]. 

A boy (?) of undetermined age (although [[alipheese fateburn xvi|Alice]] mentions that he’s younger than 21, and is apparently of age to be considered an adult in his society) aiming to become a hero. He has [[purple hair]], [[blue eyes]] and wears a red [[cape]] over his hero outfit.
ルカ(もんむす・くえすと!) ルカ luka