Soul Summoner

Soul Summoner is an American animated action show created by Kyle Gwinn in Adult Swim (originally in Toonami).

Synopsis
25 years ago, a huge portal appeared in the human world. Therefore, an massive army of ghosts came out of the portal and began attacking the human world. Until, a group of young ghost hunters known as EXODUS fight back against the ghosts and claim victorious. However, they may won the battle but the war continues. For the past years, the ghost becoming stronger and EXODUS became from a group to an organization.