Queen's Blade Harem X Op Male reader: The powerful Warrior king

On a architectural dig site we meet Y/n L/n as he has been working as a architectural for his life and wanted to do something beside digging some rocks and other stuff. One day he was split from his team after a cave in and he was alone.

He goes deeper and Deeper to a cave and discovered some large room and a portal that is powered by a magic crystal as Y/n accidentally active and the portal sucked Y/n in and into another dimension. Now he must take part in a Queen's blade battle as a warrior and meet other female warriors as he try to survive.

but little did he know, Y/n will face a evil force that will destroy all and Y/n maybe the only one to gather all female warriors into one to defeat this evil and save the world.