Collision of Myths
You all have probably heard this one. A hero is summoned from another world and is needed to defeat evil. That's all well and good. But this story is not about him. No, this story is about His younger brother who has been reincarnated as one of his descendants. And he's bringing with him all the myths and cultures from the other world with him. His journey will be one crazy turn after another. But it looks like he's just the person to accept the challenge.