Demonic husk dude. Buried RIIIIGHT under deep in the earth on Yuu, surrounded by a bazillion other fossilized god-demon-ect corpses. Since that's basically all Yuu is. Millions and millions of corpses of deities and stuff piled on top of each other like we gots with magma and molten rock.

Despite being dead, he's still very much alive and kicking, and successfully lures a sect of mad mages to try and.. Excavate him, even if they aren't sure what they're looking for. He spreads a nasty little disease in which people start turning into stuff like him. First their veins get all spirally, then their skin forms ammonite-esque lumps and gritty bits and whorls until they either die, or in one case, become the host for his spore (Ie, Snakeweed).

Calls himself 'poet' because he's just a biiiiiit of an egotist.