Whose Brother Are You Talking About?

Traveling across the mercenary world, he was assassinated and the whole group was killed. Unexpectedly, the soul returned to its hometown? When he opened his eyes again, it was already a different world. It only took Jiujun a few seconds to accept the fact and start his adventure in another world! But what the hell is this "shota" who suddenly appears? And what's going on with these beasts?