Demigra (LOTSG)

"I am no mere demon, I am the Demon God. Kneel before your new God, Mortal."

- Demigra, in his first encounter with Kaestos Demigra is the Demon God who rules over the Demon Realm, and his ambition is to rule over all of space and time.

Demigra is the only person know that matched Kaestos at his full potential.

Background
Demigra first appeared 75 Million years ago, and attempted to take control of the Time Nest from the Supreme Kai of Time.

He was defeated and sealed by her into the Demon Realm, and for 75 Million years he trained himself.

Demigra's seal was encountered by Dabura, Towa, and Mira, who were supposedly contacted by the Supreme Kai of Time and given the task to check on his imprisonment.

When they appeared before Demigra he revealed that it had been a trick, and dominated their minds before sending them away.

Demirgra's new subordinates were now fanatically loyal to him, and were tasked with collecting powerful Ki from fighters all throughout time, which they would use to break the barrier that bound Demigra to the Demon Realm.

His wait was finally over when they collected enough energy in Age 825.

Power
Demigra originally held a God Ki of around 5, however after training in the Demon Realm for years he increased his power a fair amount, and attained God Ki 15.

When Demigra appeared on Earth and confronted Kaestos, his power had decreased to a God Ki of 9, as he utilized a good portion of his power to shatter the barrier trapping him entirely.

After he absorbed a few alternate versions of himself and trained for 5 years his power skyrocketed, and at his strongest in his Demon God Dragon form his God Ki is 201, but this level of power is difficult for him to mantain and is usually at God Ki 199 or 200.