Aguero Agnis Khun

Khun Aguero Agnis is a defected “son of Khun,” and is often referred to as Mr. Khun. He was expelled from the family because his older sister failed to become one of Jahad’s Princesses. He teamed up with Bam and Rak and passed multiple tests with them. He was assigned the Light Bearer position and showed clear talent in the field. He is a highly intellectual Regular, who manipulates the rules of tests to suit his needs.

(Source: Tower of God Wikia, edited)