I, Doomsday, have been in the core of the sun for 10 years

Lu Yuan was originally just a normal person, but one day he crossed over and became the famous Doomsday of the DC Universe.
Doomsday does not refer to a single monster, but a terrifying legion from the Kryptonian technological civilization.
But Doomsday is not Superman. In fact, it is a terrible biochemical weapon invented by Kryptonians who resurrected dead bodies after gaining superman power.
Lu Yuan happened to become one of the doomsdays after crossing, and stayed in the core of the sun for 10 years.
One day Lu Yuan woke up, but when he flew back to the earth, he found that this was no longer the earth of the DC universe. For some reason, he seemed to have come to Marvel?
"Isn't this invincible? Without kryptonite, I'm God."