UnderPrin

 was a Supernatural Webtoon Original created by SMBRYMS; it concluded on August 26, 2020. The original Korean Webtoon premiered on Naver and concluded on October 31, 2015.

Synopsis
''Jin is a famous singer whose true identity is the legendary devil “Lord Perdien”. Even his son Miryu does not know that his father is the legendary devil. To protect his son, Jin fights.''

Miryu
A demon and the son of Jin (Blowslain).

Jin (Blowslain)
Blowslain is the son of the demon queen and half brother of Lizen. He is the father of Miryu.

Lan
He is destined to kill Miryu and Blowslain but instead joined forces with them to defeat the demo queen.