Shaman King Faust 8

Shaman King Faust8 "Eternal Eliza" (SHAMAN KING FAUST8 「永遠のエリザ」) is a light novel by Kakeru Kobashiri and a spin-off to Hiroyuki Takei's Shaman King series focusing on Johann Faust VIII's backstory. A manga adaptation by Aya Tanaka began serialization on Weekly Shonen Magazine's online Magazine Pocket website.

About
The story of Faust and Eliza's encounter, the brief happiness they find after their illness, and the tragedy that befalls them. What is death? What is life? This is the story of Faust VIII, who kept resisting these questions.