Quests in the MARDEK series are goals or objectives for the player to accomplish. Some quests are required, in order to advance the plot; others are optional. Most quests take multiple steps to complete and reward the player in some fashion.
This side quest spans over the course over the game. Various Non-Player Characters will ask you for various items, and after giving them said items, they give you something in return.
First off, shop owner in Xantusia will ask you to bring him some ★ Sand Fruit, which can be obtained in the nearby Sandflow Caves. Giving the fruit to him, the shop owner will reward you with a ★ Special Ointment.
This ointment can be given to one of the priests in the Sun Temple, for which he will give you ★ Hair Tonic in return.
The Old Hermit takes the cake, giving you a ★ Little Wooden Key, of which you have then have to find the lock to put it in.
Said lock is found in the Earth Temple, in which stands a sole chest, which, when opened, will ensue a battle with a Red Dragon. Beating the Dragon nets you some ★ Red Dragon Scales.
The blacksmith in Xantusia uses these scales to forge the Drackal Crescent for you.
A 20% chance to get the rare Trilobite Staff whenever you defeat one of the Trilobite Warriors, and access the Arena in Cambria in MARDEK Chapter 3: Keystones after defeating all six.
Special note: Once you bought five ★ Warport Tickets you will receive a ★ Gold Warport Pass, and they will stop doing any security check on you and the Security Demon will not appear.
Rewards
10,000 experience points and a ★ Gold Warport Pass which grants unlimited Warport travel. You also get to keep the original ★ Warport Ticket as a bonus prize.