Yoon Jung-in

Yoon Jung-in is in Class 1-8 of Seonhyun High School with Ham Dan-i. He is from Seokbong Middle School, and was one of the Four Heavenly Kings of Seokbong.

He has been class president for nine years, and becomes the official class president of Class 1-8 after Dan-i gives up her temporary role.

Appearance
Jung-in looks the most "normal" of the guys considered a Heavenly King: he has brown hair and black eyes.

Personality
Yoon Jung-in is a very carefree, loud and warm-hearted person. He is popular for these reasons.