Jiro Asagiri

Why he's loathsome:

He's a poor representation of an abusive parent.

He neglects Aya.

He is hits his son Kaname with his fists if he doesn't study hard at school in order to take him to Tokyo University. This would result his son to become a complex sadist who verbally kidnaps his sister Aya by tying her up, punching, and choking her to relieve his stress from this abuse.

Redeeming Qualities:

He lacks no evil than Kaname ever does