1. The starting NPC Zigaunt Priest is located in the Temple of Gludin. Talk to Zigaunt to start the quest.

Zigaunt will give 1st Letter of Order NG

2. Teleport to Gludio. Find Simplon Armor Merchant in the Weapon Shop and talk to him.

Simplon will give Book of Simplon NG x 2

3. Head to Gludio Temple. Find Vivyan Priestess and talk to her.

Vivyann will give Book of Vivyan NG

4. Head to the western gate of Gludio. Find Praga Guard and talk to him.

5. Teleport from Gludio to the Ruins of Agony. Find and kill monsters:

Ruin Zombie Lv. 15
Ruin Zombie Leader Lv. 16

Until you get Pendant of Mother NG

6. Return to Praga Guard and talk to him.

Praga will give Book of Praga NG

7. Teleport to Gludin Village. Find Zigaunt Priest in the Temple and talk to him.

Zigaunt will give 2nd Letter of Order NG

8. Teleport to Talking Island Village, then to Elven Ruins. Head northeast, find Lionel and talk to him.

Lionel will give Lionel's Book NG

9. Teleport to Talking Island Village. Exit the town through the southern gate and head to the starting location of the mages, also known as the Einhovant School of Magic. In the School of Magic, find Gallint Grand Magister and talk to him.

10. Return to Lionel and talk to him.

Lionel will give Lionel's Covenant NG

11. Teleport to Gludin Village. Find Zigaunt Priest in the Temple and talk to him.

Zigaunt will complete the quest and give you Mark of Faith NG

12. To change your profession, talk to Levian High Priestess in the Temple of Gludin.