I Transmigrated into Douluo and Became Godzilla

Godzilla + Soul Land + rapid power growth + invincible in the later stages (if you don't like it, don't read)

The genius Xiao Tong lost his mother at birth, which made him a solitary person. But after attending a school reunion, he was hit by a truck on his way home and died. By a strange twist of fate, he transmigrated to the world of Soul Land and became Godzilla. Watch as he forges a legend among soul beasts!

The summary doesn't do it justice. Read the story itself.