Yun Fei

Yun Fei is also one of Feng Lan's best friends who is also attending the same university as Feng Lan. Usually, the three of them (Feng Lan, Lu Jing and Yun Fei) always hang out together. According to Feng Lan, Yun Fei is a professional in Taekwondo. He plays as a Keikkashi (Barrier Master) who specializes in making barriers to counter, weaken, and hinder the enemies but does not have any attack skills.
When he first met Prince in the game, he and Lu Jing were under attack. They were saved by Prince who was covered in a cloak to avoid them discovering that the person who saved them was Prince(Xiao Lan). Lu Jing and Yun Fei called Prince "Dage" as they do not know his/her name.
Later on, they betrayed Prince by pushing him over a cliff after stealing the headband of the Demon Lord from him. Prince forgave them when they reunited a few days after the event. Prince, Lu Jing, Yun Fei, Sunshine and Kenshin then returned to Infinite City by riding on Sunshine's flying carpet after rescueing Sunshine and leveling up.

Related manga:

1/2 Prince Light Novel, 2004
1/2 Prince Manhua, 2007