If they gave me a pass on the 4th try but still forced me to do the test again just because their system had a flaw I would say f#ck it and kill all the inhabitants of that world saving the demon king for last before ending him too. They want me to fail? I'll give them the best fail they've ever seen.
I found this after reading the novel and I have to say, the way they butcher the skill names and such is painful. They should just stick with the novel translated skill names. The rest is great.
Is there a harem later on?