(A/N If your wondering, I got that inspiration from Polka in Death Mount where he end up in another world so I decided to make this character)

Old Name: Lucero (From otherworld), Calvin (Reborn to New Earth)

Demon Name: Calcifer (Reborn to New Earth)

Nickname: Cal

Type: Powerful Deity but disguise as a demon (he was reborn in a dead body he took which made him immortal)

Age: 21 (but stopped aging after becoming immortal)

Title: Shadow Angel, The Punisher, King of Grimms, Divine Slayer, Forgotten God, Dark Monarch

Personality: Peerless, quiet, cunning, clever, helpful and sometimes has a kind-hearted. He was called being heartless due to not feeling any emotion. But slowly opened with a help from Charlie and all the people he met. He has a keen of judgement where he decided to execute or help redeemed.

Appearance:

In his Human Form, He was once an immortal king until he was reborn in another body as mortal being but still has immortality since his heart is no longer beating so he is a walking dead corpse. His messy neck-length light brown hair and had a heterochromia eyes; purple and yellow but he cast a disguised spell to make his eyes brown. His face was the most handsome boy that he can charmed any girls or boys. He cast a limitation seal behind his neck to restraint his powerful ability.

In his Demon/ Grimm Form, His hair turned silver, along with his skin and gained two grim horns and black and red marking surround on his upper body to the face. His eyes change to dark sclera with purple slit pupil, covered by dark scales on his left side. He has dark angel wings whenever he needed it.

His heterochromia eyes

Clothes: 

Human Form

His casual outfit

Shadow Form

- Using a half portion of his power to punish those around him, including execution and torment. He only change his hair to white as a disguise and his eyes purple.

Grimm King Form

- By unleashing his true power, He reverts back to his true form; The Grimm King. 

Ultima Form

- When he combine both powers of the Grimm and the Holy Light, He turns into an angelic deity Form. He had 4 set of wings which is Gold and Black. He still has horns but with white flaming halo above his head.

Powers:

He cast a conceal and restraint spell on his choker in order to make sure it won't be detected.

Spiritual weaponry - sometimes he uses his loyal grimms however it also enables him to draw out any weapon from other sinner.

Spiritual Influencer -an ability to force sinners or demons into a submissive state.

Almighty Magic (but restrained to small limit)

Divine Slayer (But sealed away unless it's necessary)

Danger Detection

Self- Resurrection  & Healing Regeneration

Immortality

Enhance strength and speed

Precognition

Grimm Summon

Instant Death Ability

Immunity - In other words, no curse powers or holy weapon cannot kill him. He's powerful than any angel or demons.

Creatures of Grimms 

-  described as "Soulless creatures" that lack a soul; They are drawn to feelings of negativity - such as envy, sadness, loneliness, hatred, etc. - often congregating on the source of these emotions such as the 7 deadly sins. Not to mention, They devourer any beings such as humans, demons and angels. Unfortunately, they were sealed in Solus body due to the curse bestowed by the previous Grimm King which would be troublesome if anyone destroys a vessel would accidentally unleash them with no one to control. Only Solus was able to control or command them.

7 Deadly Grimms (Spiritual Weaponry)

There are also High Class Grimms who were once heroes or villiains so he turns Souls into Loyal Grimms and were made to be spirit weapons.

- Orion, Pride Grimm

Weapon Form: Gunblade

-Lovely, Lust Grimm

Weapon Form: Scythe 

-Greedling, Greed Grimm

Weapon Form: Bat Wing Staff

-Eater, Gluttony Grimm (I choose Bebe so it can disguised itself as a harmless doll into a devourer)

Weapon Form: Chakram

-Sleepy, Sloth Grimm

Weapon Form: Bow & energy arrows

-Wraithor, Wrath Grimm

Weapon Form: Crusher Gauntlet

-Oz, Envy Grimm

Weapon Form: Chain Whip

Other Soul who became Grimm

Warfire, Grimm of War

- was once his partner during the war but ended up in another world instead.

Weapon Form: MotorBike (A/N Like GhostRider)

Two Deity living inside of him

- Mephiles the Dark and Meziah the Light