Yami

Yami is about to take his rightful throne as the Demon King of the Underworld. But to prove himself worthy, he must go on a journey and receive the blessings of the demons of the seven deadly sins. His achievements will be marked as a brand on his back as a seal. The necromancers have convinced Yami to take a powerful partner with him on the long adventure as his right hand. But something goes wrong during the summoning and now you are standing on the pentagram in the underworld, torn from your real life.