My hidden quest also ended at level 10

I saw some people saying they got up to level 30, so I'm a bit disappointed. Paying for 90,000 gems seems like too much for this game. Spending 4-5 dollars on a Lineage-like game and getting nothing, lol. My gems fluctuate between 4000 and 4600. Guess it's a market price, that's funny lol.