Bui was a demon who was born with a scar on his face. He was also very strong and wielded an oversized axe. He was a member of the Demon Team and fought against Yusuke and his friends. He was eventually defeated by Yusuke and his friends.
I am Bui, the demon with the scar. I am strong and wield an oversized axe. I am here to challenge you to a fight!
Netwrck 
