Клайм

The Personal Bodyguard of Princess Renner. She saved him when he was just a street urchin about to die from sickness. As such, he views his services to her as a fulfilling of that debt he owes and is even willing to give up his life for her. However, he remains unaware of Renner's true nature. He is rather disliked due to him having such a position despite not even being a commoner, but an urchin. Despite this position, he holds no talent at fighting, making up for it with sheer effort. He eventually meets Sebas and, after convincing him to teach him some of his skills, they become friends, though he remains unaware of his loyalty towards Ainz.

He also has a close friendship with Gazef and Brain as well as several members of Blue Rose. (Source: Wikipedia)