From Infinity Studios:
At the beginning of the 21st century a sudden increase in genetic mutations cause some people to be born with special abilities. However, these enhanced humans are not welcome amongst the general population. As time goes by, they are marked for exile and shunned by society, resulting in a life of crime for many. As their special powers make them difficult to apprehend, the government joins hands with an unofficial, secret group of bounty hunters known as Peigenz. The Peigenz organization is filled with the most gifted and highly trained mutated individuals.
Jay Berell, the heroine of the series, is a normal high school student. During a battle between Peigenz and a dangerous serial killer, Jay find herself caught in the crossfire. This triggers her special mutant abilities and leads to her recruitment into the Peigenz organization.

From: Easy Going Scans

Mu-Sang’s has a quest... He must find and kill every “Gwi” that has ever existed. He is determined and won’t let anything get in his way, not even the imperial army!
While traveling and searching for the remnants of Gwi, he meets a girl who also bears the same mark crossed out than he has. A fateful encounter? Were those two fated to meet? And why does he hold such a grudge against the “Gwi”? ...are all questions left to be answered!

From Infinity Studios:
Ever since we were children, we’ve heard stories about ghosts and about heaven and hell. Well, what if we told you another existence between heaven and hell exists? This is exactly what Suh Rin, an average high school girl, finds out one gloomy day.
On her way home from shopping around, Suh Rin meets with an unfortunate end when she is hit by an on coming truck. The next thing she knows, she’s being abducted by a stranger. Overwhelmed by the fact she had just been killed, Suh Rin has difficulty grasping the fact that she has entered a new existence in a realm of spirits. More importantly, she has yet to realize that tremendous supernatural powers lie within her… a power great enough to make her the target of abductions by tremendously powerful people within the spirit realm.
However, thanks to Young and the mysterious owner of a café called the Café Occult, Suh Rin is rescued from a new existence as someone’s servant. On the contrary, she joins Young on action packed thrills in which she assists Young fulfill requests as an ‘errand boy’ taking care of special requests by clients in a lawless world controlled only by power.