Lewis is by all definitions a madman,formerly a proper hunter of demons,he perished and lost it all,though he was always cunning and managed to scheme himself into a position of power,tricking one of the dukes of hell and taking his powers,legions and title for himself. He is effectively a replacement for Eligor,and his insatiable lust for power and strength fuels his less than savory deeds, driven to protect what he has lost and what he has gained since,by all accords not the most foul person but not someone that can be trusted.