Sword Immortal from Another World

In order to bring light to a world full of dark forces, the human kingdoms have summoned legendary warriors from another world (Earth). However, is there something strange mixed in? What is this ancient costume and long hair! This book will cover some game-like panels and systems in the early stages, but the main plot has nothing to do with upgrading, it is not a game world, and there won't be many descriptions of Taoism. The main style is adventure, invincibility, plot flow, relaxed, and try not to write cliché plots and poisonous points.