Lua is a parsonage of the game by Nemlei (the same one who created the coffin of Andy and Leyley).

Lua is a magician about 22 years old (approx), he is cunning, arrogant but sometimes he is someone you can talk to about your problems, he doesn't care about them, but he cares about gossip.

He separated Thew (the protagonist) into 2 halves, a negative and a positive. This is the canon alternate ending of the game in which the 2 clones fall in love with themselves and leave Lua's deal.