A Titan Rises in DXD

A fan of both DXD and D&D history, the Reader has opened a cursed book that has brought them into the world of DXD with the gift of the gamer: pathfinder edition inside of the body of the most feared being in all of d&d history. The story of an overpowered MC who gains the body and power of Cronus, The Elder Titan of legend made by the primeval gods of creation in a grand, cosmic mistake. For he is the answer to an age old question about the gods: If God is All-Powerful, can he create a stone he cannot lift? Cronus was the answer, and the answer...was yes. So despite being given all of this tremendous power, the reader is still for some reason given the ability to start progressing in an entirely new class???? Doesn't make much sense man, but hey- In DXD, all the bullshit power helps with how insane the characters get.