Kontsumi

Kontsumi (魂罪, Kontsumi, lit meaning=Spirit Crime) is a Mage following the ancient art of Toxic Dragon Slayer Magic, a form of magic which was originally designed to slay dragon's using poison to slay these creatures. Kontsumi was born in ancient times, raised by the Poison Dragon Queen, Toxina. Toxina raised the boy as her own, affectionately calling him Kon (魂, Kon), a name which Kontsumi is referred to as even now. After being trained the art of Dragon Slayer Magic, the boy was given a toxin which launched him into a sleep for hundreds of years, waking him up in an era he never thought possible. Originally, the man had been a bounty hunter, and it was during this time that he earned the moniker, Guildslayer (ギルド刑吏, Girudokeiri).