Before the Underworld

Not much is known about him before he entered the underworld. He was stuck in a loop of meeting new people, getting to become their friends and then seeing them die. He only fled this when Kokoa, who was snooping around Nemurenai's office, accidentally red the wrong like of a "spell" out loud. This summoned Tsin and the demon who trapped him. Tsin promptly beat the living shit out of him and accidentally absorbed the Key, meaning Nemurenai couldn't even kick him out. This promptly led to Nemurenai reluctantly hiring him in.

In the Underworld & the Downfall

In the Underworld Tsin was signed in as the "advisor" of Nemurenai, getting dragged along as he tried his best to bring out the personality of people (mainly Kokoa). He of course only wanted to cause trouble and have fun with these new people, not even caring about the most saught after item in the Underworld that was glued to his face.

After various misadventures he leans about the truth about Nemurenai and the situation of the Sky basically collapsing under the hand of the 3rd. He begins to take things more seriously and eventually he locates the door to the heavens and goes to the Sky with Nemurenai, leaving Kokoa and Peppermint alone in the Underworld with the company. This sends Peppermint in despair, waiting for their return, as Kokoa takes over the company like he always wished but can't feel fulfilled.

A couple of years pass before anything really happens, both Nemurenai and Tsin reform the Sky with the 3rd while Kokoa runs the company and Peppermint just roams around by the door to the Sky, awaiting their return. One unfaithful day, after the vote of the majority of the Sky, the Underworld is purged with the hunters (entities created by the 3rd to originally maintain the law). All monsters and demons were to be ended on the spot. Kokoa decides to leave everything behind (like an asshole, of course) and run to the Sky's door on the hills above the city where Peppermint is. They both witness the downfall of the underworld.

The population of the Underworld halved that day as Kokoa tried all he could to pry the door open or to call down ANY of the Archangels, this ended up being futile. In a last desperate attempt he uses his powers granted by the company to go to the Overworld and kill 1 human. This of course breaks the law and a divine force is summoned, which ends up being Tsin (in his true angel from). Of course he's generally shocked that Kokoa of all people would break the law, but he found himself unable to kill him. In a last, desperate, attempt Peppermint tries to get Tsin to stop the purge, but it's too late. When they return everything is desolated, the survivors attempting to go on with their life like nothing happened. Over the course of a couple of months the underworld fills up once more, and once more it is purged. Kokoa and Peppermint thus decide to try and convince the Sky that they are wrong about the Underworld's reputation.

Design Notes

He is generally based on stars, mages and all stuff like that. He can wear basically any clothing.

Abilities

Tsin is able to teleport small items and himself, regenerate, use his "mad yo-yo skillz" and occasionally utilize the power of the Key, even if he dosen't really know how it works.

Inventory

Kokoa  Friend 

Nemurenai  "Boss" 

Peppermint  Best Friend