Hm... not really... Basically... mc is a loser that get lucky enough to take advantage (not seggsual) of a dragon... that turns out to be female... gets a bit stronger and proceeds.. to take advantage of a bunch of other females that come his way making them do the hard work in his stead... and obviously... providing enough fanservice to motivate that kind of reader to not drop it...
The plot is meh... the pacing is weird and there's a lot of plotholes...

Is it good ?.