Marestail (Patreon)

...In his childhood!
Mare had two twin sisters and several other siblings, but they all died from a mysterious illness. Because of this, Mare's parents considered that the cause of all their troubles was the son who miraculously survived, so they wanted to get rid of him, calling him "Zur's Offspring."

Fortunately for Mare, he was saved by Ragneda, who also became his mentor on the path to Melalia.