
Story and the knight Sent
The heroes who followed Priest Devin held Crywolf against Balgass and were reborn with the blessing of the god Lugard, yet that was still not enough against the new monsters. Devin turned to Sent, one of the 12 priests of Light and Lugard's guardian knight, and asked her to test the heroes again and pass her power to those who prove worthy. She came to Lorencia to meet them.

4th class names
| Class | 4th class |
|---|---|
| Dark Knight | Dragon Knight |
| Dark Wizard | Soul Wizard |
| Fairy Elf | Noble Elf |
| Summoner | Dimension Summoner |
| Magic Gladiator | Magic Knight |
| Dark Lord | Empire Lord |
| Rage Fighter | Fist Blazer |
| Grow Lancer | Shining Lancer |
| Rune Mage | Majestic Rune Wizard |
| Slayer | Slaughterer |
How the quest works
- Talk to Sent in Lorencia town (131,147) to go to the Area of Eligibility, a staging area where you prepare and can form a party.
- When one party member talks to Sent there and picks the Test Area, the whole party moves with them.
- Only level 750+ characters may enter the Test Area. The quest itself is for characters who reached level 800 after their 3rd class, but those below 800 can still come in and help.
- If you quit and return to town, the stages you finished stay saved and you can pick up where you left off.
The three stages
| Stage | Goal | Reward |
|---|---|---|
| 1. Eligibility Test | Beat Sent herself: bring her HP to 0, then talk to her | 20 stat points |
| 2. New Battle (1) | Survive 1 minute and kill 5 each of the Deep Dungeon Skeleton Warriors, Cyclops and Ghost monsters | 30 stat points |
| 3. New Battle (2) | Beat Sent again; this time she uses more skills, more often | 50 stat points, Scroll of Gray Oblivion, 4th class, Skill Enhance Tree |
- In stage 2, when time runs out the monsters vanish and Sent appears; talk to her to finish. If you missed some kills, just run the session again: earlier kills are kept, so you only make up the missing ones.
- The Scroll of Gray Oblivion arrives in the Gremory Case and stays there for 7 days.
After the 4th class
A 4th class character opens the Skill Enhance Tree with Ctrl+A and spends the skill points earned on each new level to strengthen chosen skills. The next and last step is the 5th Class Quest; the earlier steps are in 2nd & 3rd Class Quests.
Sources
- MU Online Guide Library: 4th Class Quest
- MU Online Guide Library: Rune Mage 4th Class
- MU Online Guide Library: Slayer 4th Class
- MU Online Wiki (Fandom): Quests
Game pictures: © Webzen Inc. · muonline.webzen.com

