Corpse God

Polka Shinoyama (四乃山ポルカ Shinoyama Poruka), known as the Corpse God (屍神殿 Kabane Shinden) in the Other World, is the main protagonist of Dead Mount Death Play.

As a human born with the Evil Eye, the Corpse God – not yet known as such – was sold to a Necromancer at the age of ten and studied Necromancy under her tutelage, eventually becoming an Undead himself. Though he wanted nothing more then to live a peaceful life, the Geldwood church spent centuries wanting nothing more than to see him dead.

To achieve the peaceful life he so desired, the Corpse God pursues the secret art of reincarnation with the intention of reincarnating as one of his fallen kinsmen. His spell works, but not as fully expected: rather than reincarnating as his kinsman, the Corpse God instead wakes in the corpse of the real Polka Shinoyama, freshly murdered in the Shinjuku ward of Tokyo, Japan.

Despite having reincarnated in a wrong body and world, the Corpse God has concluded this is his best chance yet at having a peaceful life. With the real Polka's permission, he has assumed Polka's name and identity along with Polka's body. His real name is unknown, as it is unpronounceable in Japanese.

Appearance
In his early years as an undead being, Polka walked the earth as a blackened humanoid skeleton of adult stature, wreathing himself in a long, light-colored cloak with a hood and capacious sleeves.

Polka's final form as the Corpse God, centuries later, is unrecognizable. Where his previous skeletal frame was black and humanoid, his skeletal form as the Corpse God is white and bestial, resembling Earth vertebrates in some respects but too different to be directly analogous to any one creature. The horns adorning his cranium are bullish, and his hands have opposable digits.

However, while his axial skeleton has familiar paired ribs and his thoracic vertebral column familiar dorsal spines, he has three pairs of arms whose extraordinary length seem to compensate for the unusual caudal position of their (presumed) pectoral girdles; unusual, that is, when compared to those of hominids. Whatever lies below his lumbar vertebrae has been cloaked alternatively in cloth and shadow.

It is also unclear to what extent his skeletal form is reflective of creatures unique to the Other World, and how much of it is the result of necromancy magic. The ventral side of his rib cage displays unusual armoured plates instead of the long, flat sternum typical to primates, behind which he keeps – kept – his true form: a human brain, contained in a chain-suspended jar; considering the comments of Shagrua and his comrades, the armored plate could have been a custom design on his part to better protect his true self.

As the human "Polka Shinoyama," Polka has stayed true to the real Polka's hairstyle and fashion choices and is usually seen wearing the same outfit he found himself when he reincarnated. The neck wound that ended the real Polka's life has been stitched shut, and is stark against his throat. Thus, any photographs or videos depicting Polka with an unblemished neck must be depicting the real Polka prior to the murder attempt.

Personality
To be added.

Chronology
To be added.