He is Min Choi's older brother, who has passed away before the start of the series.
It is revealed that he passed away from a motor accident. He was a very kind person and tried his best to help his father with the bills and paid for Min's after school activities so he could have a normal life.
June is actually alive on Earth 1, where he is the head of Ash Haven. He calls for a free and fair life for everyone, and has cut ties with his brother D.
