Divine Battle: War of Champions

This is an alternate reality. Here, everything is almost the same as on Earth, but with some nuances: the ancient Gods are real here, they exist and influence the mortal world, and once every 10 years they hold the so-called "Divine Battle". This is a competition, like a royal battle, in which each God chooses his Champion among ordinary people, endows him with a unique system, and he is forced to fight other Champions, kill and try to survive. As a reward for victory, the gods give an incredibly valuable gift, different from battle to battle. But there are also three Forbidden Gods, illegally participating in the Divine Battle, but not with the goal of winning, but with the goal of destroying this "game" by killing all the Champions of other gods ... But none of the ordinary people even suspects all this. It's a crazy world where Gods have fun using human lives as a currency, and Kazuto Mizuhara is now one of these Champions, forced to fight, kill and survive in this crazy and bloody battle.