Kazuki Koshin is an 19 year old Hunter and the son of the most deadly hunter in the Heaven named "The Cryptid". Being the first born of the Koshin family, he also trained himself with the help of his uncle the guardian of Hiroshima and his father. As a huge and unexpected adventure of life and freedom, the events he came gets more dangerous and serious. Just to stop and defeat the great demon king himself from invading their homes, with his well trained teammates which also named team "SINS", they fight for Honor and glory for heaven and freedom until the every last drop of their blood drops to victory. (This is an original story I've made for you readers)
22 parts