The Master of Ragnarok & Blesser of Einherjar (Japanese: 百錬の覇王と聖約の戦乙女（ヴァルキュリア）, Hepburn: Hyakuren no Haō to Seiyaku no Varukyuria, literally "Well-tempered high king and valkyrie of covenant") is a Japanese light novel series written by Seiichi Takayama and illustrated by Yukisan. The series is published in English by J-Novel Club. Chany is serializing a manga adaptation on Hobby Japan's website. An anime television series adaptation by EMT Squared aired from July 8 to September 23, 2018. Yuuto Suoh is a normal high school student who is knowledgeable about urban legends. In order to prove one of these legends, he and his childhood friend Mitsuki Shimoya visit a local shrine nearby. However, while using his solar-powered smartphone to take a picture of himself next to the shrine's divine mirror, he gets mysteriously transported to another world called Yggdrasil.