There Is a BUG in the System of Invincible Heroes

When I open my eyes, there are no tall buildings or busy traffic. Everything around me is strange. The white horse with sharp horns on its head, the lion with wings on its body, the giant dragon with scales, the mage who can summon fireballs with a wave of his fingers, the knight who splits the earth with one sword... Well, this is a world of swords and magic. Let's see how our protagonist Jin Chen stirs up the world with a cheating system.