Required quests
Main dialogue
Accept
Everyone at Sand Bandits has a deep hatred towards the queen. We just don't show it in public. If you just let your anger out like that, then you may feel great that moment, but you can't achieve bigger things by doing that.
That is why, the most important aspect of being a Sand Bandits is patience. Being patient enough not to be swayed by what's unfolding right in front of your eyes, but patiently waiting for the right time. That's what's required to become a Sand Bandits.
Do you know Lidium? It's a jewel that you can find from time to time by slaying the monsters at the desert. If you bring me 2 4011008s, then I'll personally accept you as a member of the Sand Bandits. It's not easy refining small ores into jewels, so... I think this will be a good bar to judge your level of patience.
Main dialogue
Ho! You did bring 2 4011008s. This jewel can only be found in the region of Ariant, and it's hard to make one due to its hardness, but once it's made, its figure will last for a long time. It may look brittle, but it's actually much harder than a diamond.
4011008 resembles a lot of the characteristics of the people in the desert. People here may not give you trust at first. You'll have to earn it, but once you earn it, they'll never turn their back on you again. You have definitely shown me your true character. I, Eleska, the desert warrior, will now anoint you as a proud new member of the Sand Bandits!
Accept
But don't be satisfied with just this. You have just earned one person's trust, that's all. You are not yet officially accepted as a true member of the Sand Bandits. If you really wish to become one, then you'll have to find other members and prove your worth to each and every one of them. Don't worry too much about it. I think you're more than capable enough to quickly earn their respect and trust.