Last updated: July 27, 2026

On this page: Barracks Map · Requirements · Prove Your Strength · Barracks of Balgass · Refuge of Balgass · Rewards · FAQ

MU Online 2nd to 3rd Class Quest – Full Guide

The 3rd class change is the big one. Three stages, 22,000,000 Zen, two instanced maps and a boss fight — and at the end you unlock the Master Skill Tree.

The NPCs You’ll Meet

Rendered from the game client so you know exactly who to look for.

Requirements

Requirement	Value
Starting level	380 (final stages need 400)
Quest NPC	Apostle Devin — Crywolf (228, 48)
Prerequisite	Hero Status — except Magic Gladiator, Dark Lord, Rage Fighter and Grow Lancer, who have none
Total Zen	22,000,000 (5M + 7M + 10M)
Total stat points	+70

Older servers: on pre-Season 6 clients Devin stands in Devias (182, 27) instead of Crywolf.

Stage 1 – Prove Your Strength

Level 380, 5,000,000 Zen. Collect three trophies:

Item	Drops from	Map	Mob Lv
Death-beam Knight Flame	Death Beam Knight	Tarkan	93
Hell-Miner Horn	Hell Maine	Aida	98
Dark Phoenix Feather	Phoenix of Darkness	Icarus	108

The three trophies they drop — 10% each:

All three drop at 10% — far kinder than the earlier quests. Set MU Helper auto-pickup to Flame, Horn and Feather.

Reward: +20 stat points.

Stage 2 – Infiltrate the Barracks of Balgass

Level 400, 7,000,000 Zen. Pay the Werewolf Guardsman in Crywolf to enter Balgass' Barracks, then kill 20 each of three monsters:

Monster	Level	Kills needed
Balram (Trainee Soldier)	117	20
Death Spirit (Trainee Soldier)	118	20
Soram (Trainee Soldier)	119	20

You pay the entry fee every time you enter, so try to finish in one run. Kills count for every partied member who has the quest active — going in as a group is much faster.

Reward: +20 stat points.

Stage 3 – Into the Realm of Darkness

Level 400, 10,000,000 Zen. Inside the Barracks, find the Gatekeeper at (120, 168) and enter Balgass' Refuge.

Target	Detail
Dark Elf (Trainee Soldier)	Level 128 · 1,000,000 HP · kill 1
Her mechanic	Stuns every 5 seconds for 3 seconds — you will spend much of the fight unable to act.
Respawn	Roughly 3 hours if she has already been killed.

Bring a party. The stun makes soloing her miserable, and with 1.5 million HP a single character takes a long time. If she is not up when you arrive, you are waiting for the respawn timer.

Reward: +30 stat points, your class evolution, and the Master Skill Tree.

Barracks of Balgass – Map and Monsters

The Barracks of Balgass is the instanced map used by stage 2 of the 3rd class quest. It is reached from Crywolf by paying the Werewolf Guardsman, and it holds three Trainee Soldier monsters — the only ones that count toward your quest.

Monster	Level	HP	Defense	Damage	Kills
Balram (Trainee Soldier)	117	75,000	480	550–650	20
Death Spirit (Trainee Soldier)	118	85,000	490	580–680	20
Soram (Trainee Soldier)	119	90,000	500	600–700	20

Note the (Trainee Soldier) suffix. Ordinary Balram and Soram exist elsewhere in the game at much higher levels — level 132 and 134 with 140,000 and 164,000 HP — and killing those gives you no quest credit. Check the name before you commit to a pull.

Getting to the Refuge of Balgass

The Refuge of Balgass (Balgass' Resting Place) is a second map beyond the Barracks, used by stage 3. You do not re-enter from town — you go through the Barracks:

Step	What to do
1	Enter the Barracks of Balgass from Crywolf via the Werewolf Guardsman.
2	Cross to the Gatekeeper NPC at (120, 168).
3	Click him to move into the Refuge of Balgass.
4	Kill Dark Elf (Trainee Soldier) — one kill completes the stage.

Boss	Level	HP	Defense	Damage
Dark Elf (Trainee Soldier)	128	1,000,000	640	800–900

Her damage is modest for the level — the difficulty is entirely the 1 million HP pool combined with her stun. Expect a long fight and bring a party.

HP and damage figures are taken from live server files. Private servers commonly adjust these, so treat them as the standard baseline rather than a guarantee.

Class Evolution

2nd Class	Becomes
Blade Knight	Blade Master
Soul Master	Grand Master
Muse Elf	High Elf
Bloody Summoner	Dimension Master
Magic Gladiator	Duel Master
Dark Lord	Lord Emperor
Rage Fighter	Fist Master
Grow Lancer	Mirage Lancer
Royal Slayer	Master Slayer
Gun Breaker	Master Gun Breaker
Light Master	Shine Wizard
War Mage	Arch Mage

Continue Reading

Guide	Why it helps
Master skill tree	What you just unlocked and where to spend points.
3rd to 4th class	The level 800 chain.
Marlon quest	The prerequisite you need first.
3rd level wings	Wings for your new class.

FAQ

What level is the 3rd class quest in MU Online?
It starts at level 380 with Apostle Devin in Crywolf (228, 48). The last two stages need level 400.

How much Zen does the 3rd class change cost?
22,000,000 Zen total — 5 million, then 7 million, then 10 million. The Barracks entry fee is charged again on every re-entry.

How do I beat the Dark Elf?
Bring a party. She has 1,000,000 HP and stuns for 3 seconds every 5 seconds, so a solo kill is extremely slow. If she has already been killed, she respawns after roughly 3 hours.

What does the 3rd class change unlock?
+70 stat points across the three stages, your 3rd class evolution, and the Master Skill Tree.