The One Who Walks Through the Road to Oblivion4

Defeat Chief Oblivion Guardian (999)

Talk to Temple Keeper

Quest Start

If you want to go further, you'll need to take a harder test, same as before. So what do you want? Do you want the new test?
Then go to Road to Oblivion 4 and defeat the Chief Oblivion Guardian. If you defeat 999 of them, I will grant you permission to go forward.
That's too hard for you? Sorry, I guess this is where you stop then.

Quest Complete

You've defeated 999 Chief Oblivion Guardian. That's amazing. I will grant you the permission as promised.
Go on. You should be able to go up till Road to Oblivion 5. But, you can't go beyond that. If you want to go further... you'll have to take a new test.
As the representative of Rhinne, the Goddess of Time, I grant you permission to look back at your 5th oblivion.