matt (ego trigger)
An original character by matsu-sensei, also served as a self-insert for a time. One of the main characters of the Ego Trigger project.
His "trigger" turns him into a small dogboy. In genderbending situations, he is turned into the dog girl futanari "Lass", yet still retains his voice as a boy. Is in a will-they-won't-they relationship with Mattie.