The Master of Ragnarok & Blesser of Einherjar

Yuuto Suoh is a boy from modern times who accidentally ended up in the warring world of Yggdrasil. In a world where various clans fight for supremacy and survival of the fittest rules supreme, Yuuto managed to use his modern knowledge as a weapon and the age of sixteen, managed to become a Patriarch with a force of thousands. Welcome to an exhilarating battle fantasy chronicle about a young man who became a king in a parallel world and the beautiful battle maidens who swear absolute fealty to him!!