Kwinza's younger brother. Sezun serves Lumarty along with Kwinza. He likes Neuei more than his own brother. Neuei was his friend during elementary school. In the later story, Sezun involved greatly to make Lumati come back plan successful. When Kwinza committed suicide, he decided to go learn further into religion and pray for his late brother. At the end of his appearance and meeting with Neuei, he said he was happy to be a help to Kajika and others that he had fun in the mission.