A couple of guys get portaled from California to Ludus, a research planet of the god Dolos.
They get magic powers, a hot woman each and start an adventuring group called Delvers, LLC.
They are supposed to grow stronger so that Dolos can win some kind of a bet and our two MCs Jason and Henry hate the weird, narcissistic and fashion inept god.
Lots of action and power growth.
If you like portal LitRPG you are going to love this book!