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 to September 2018.