MU Online Class Quest Guide – 1st to 5th Class

This guide explains every MU Online class change quest from 1st Class (2nd class upgrade) all the way to 5th Class, including modern Season 20 & Season 21 content and new classes like Rune Mage, Slayer, Gun Crusher, White Wizard, Lemuria Mage, Illusion Knight, Alchemist and Crusader.

You will learn:

• How to complete 1st, 2nd, 3rd, 4th & 5th class quests.
• Where to find NPCs like Sebina, Marlon, Apostle Devin, Cent/Sent and Eunice.
• What each class change unlocks: wings, skill trees, extra stats, extra damage and mounts.
• How new Season 21 classes such as Crusader fit into the evolution system.

Class Evolution Overview (All Classes up to 5th Class)

Every base class in MU evolves several times. Below you can see the usual evolution path from base class up to 5th class used on modern Season 20–21 servers.

Base Class	Evolution Path (after each class quest)
Dark Knight	Blade Knight → Blade Master → Dragon Knight → Ignition Knight
Dark Wizard	Soul Master → Grand Master → Soul Wizard → Darkness Wizard
Fairy Elf	Muse Elf → High Elf → Noble Elf → Royal Elf
Summoner	Bloody Summoner → Dimension Master → Dimension Summoner → Endless Summoner
Magic Gladiator	Duel Master → Magic Knight → Duple Knight
Dark Lord	Lord Emperor → Empire Lord → Force Emperor
Rage Fighter	Fist Master → Fist Blazer → Bloody Fighter
Grow Lancer	Mirage Lancer → Shining Lancer → Arcane Lancer
Rune Mage	Rune Wizard → Rune Spell Master → Grand Rune Master → Majestic Rune Wizard → Infinity Rune Wizard
Slayer	Royal Slayer → Master Slayer → Slaughterer → Rogue Slayer
Gun Crusher	Gun Breaker → Master Gun Breaker → Highest Gun Breaker → Magnus Gun Crusher
White Mage / Light Wizard	Light Master → Shine Wizard → Luminous Wizard → Glory Wizard
Lemuria Mage	Warmage → Archmage → Mystic Mage → Battle Mage
Illusion Knight	Mirage Knight → Illusion Master → Mystic Knight → Phantom Pain Knight
Alchemist	Alchemic Magician → Alchemic Master → Alchemic Force → Creator
Crusader	Impact Crusader → Master Paladin → Sacred Paladin → Templar Commander

1st Class Change Quest (1st Evolution / 2nd Class Upgrade)

Who can do this quest?

All base classes that start in Lorencia, Noria, Elbeland, etc.:

Dark Knight Dark Wizard Fairy Elf Summoner Rune Mage Slayer Gun Crusher White Mage / Light Wizard Lemuria Mage Illusion Knight Alchemist Crusader (on Season 21 servers that put Crusader into the Sebina route)

Requirements

• Level 150+
• Zen: usually 1,000,000 Zen for the first task, 2,000,000 Zen for the second
• Basic gear is enough, but higher damage = faster farming

Where to start – Sebina the Priest

Go to Devias and find Sebina the Priest at coordinates (183, 32). Talk to her to start the class quest.

Quest 1 – Find the Scroll of Emperor

Sebina will ask you to find the Scroll of Emperor. It drops in low–mid maps from specific monsters.

Map	Monsters that drop Scroll of Emperor
Dungeon	Poison Bull Fighter, Dark Knight, Gorgon
Atlans	Vepar, Valkyrie
Lost Tower	Shadow, Poison Shadow, Cursed Wizard, Death Cow, Devil
Devias (on some servers)	Ice Queen and other mid mobs

Once the Scroll of Emperor drops, bring it back to Sebina. She will reward you with +10 stat points and give you the second task.

Quest 2 – Class Item (Broken Sword, Tear of Elf, Soul of Wizard, Abyssal Eye…)

The second task is to find a class‑specific item. Modern files group the newer classes together so they share the same quest item.

Base Class	Quest Item
Dark Knight, Slayer, Illusion Knight	Broken Sword
Fairy Elf, Gun Crusher	Tear of Elf
Dark Wizard, Rune Mage, White Mage / Light Wizard, Lemuria Mage	Soul of Wizard / Soul Shard of Wizard
Summoner	Abyssal Eye
Crusader	Usually shares Broken Sword with Dark Knight on many Season 21 servers

Drop locations for the class quest items:

Map	Monsters
Lost Tower (higher floors)	Death Knight, Death Gorgon, Balrog
Atlans (higher floors)	Great Bahamut, Silver Valkyrie, Lizard King, Hydra
Tarkan	Mutant, Bloody Wolf, Iron Wheel

Bring your class item back to Sebina to finish the quest. You gain another +10 stat points and your character changes appearance to the next evolution (Blade Knight, Soul Master, Muse Elf, Bloody Summoner, Rune Wizard, Royal Slayer, Gun Breaker, Light Master, Warmage, Mirage Knight, Alchemic Magician, Impact Crusader, etc.).

Marlon Quest – Combo, Nova & Extra Stats (Level 220)

The Marlon quest sits between 1st class change and the 3rd class quest. On most modern servers you must complete it to unlock the 3rd class quest and to get extra power on some classes.

Who can do Marlon quest?

Usually: Dark Knight, Dark Wizard, Fairy Elf, Summoner, Rune Mage, Slayer, White Mage / Light Wizard, Lemuria Mage. Some Season 21 servers also include Crusader.

Requirements

• Level 220+
• Zen: about 3,000,000
• 1st class change (Sebina quest) completed

Where to find Marlon

NPC Marlon appears in one of these maps (only one at a time):

• Lorencia – around (137, 87)
• Noria – around (169, 88)
• Devias – around (198, 47)
• Atlans – around (18, 25)

Part 1 – Ring of Honor

First, Marlon asks you to bring a Ring of Honor. It drops in late mid‑game maps:

• Tarkan: Tantalos, Beam Knight, Death Beam Knight
• Icarus: Alquamos, Mega Crust, Queen Rainier
• Aida: Death Tree, Forest Orc, Death Rider
• Kanturu: Splinter Wolf, Iron Rider, Satyros

Return the Ring of Honor to Marlon to complete Part 1.

Part 2 – Dark Stone (Blade Knight only)

If your character is a Blade Knight, you get a second task: find a Dark Stone in the same maps as Ring of Honor.

Other classes finish the quest after Ring of Honor and simply get their reward.

3rd Class Quest – Apostle Devin (Level 380 & 400)

The 3rd class quest changes your character into Blade Master, Grand Master, High Elf, Dimension Master, Duel Master, Lord Emperor, Fist Master, Mirage Lancer, Grand Rune Master, Master Slayer, Master Gun Breaker, Shine Wizard, Archmage, Illusion Master, Alchemic Master and similar 3rd tier names.

Requirements

• 2nd class (Sebina) and Marlon quest completed
• Level 380+ for the first part
• Level 400 for parts two and three
• Zen: 5,000,000 + 7,000,000 + 10,000,000

Where to start – Apostle Devin in Crywolf

Go to Crywolf and find Apostle Devin at coordinates (228, 48). Talk to him to start the quest.

Part 1 – Proof Items (Flame, Horn, Feather)

Devin asks you to bring three rare items dropped by boss‑type monsters:

Item	Map	Monster
Flame of Death Beam Knight	Tarkan 2	Death Beam Knight
Horn of Hell Maine	Aida 2	Hell Maine
Feather of Phoenix of Darkness	Icarus	Phoenix of Darkness

These items have a low drop rate, so expect to farm a bit. You can farm in party: if the item drops, any party member can pick it.

Return all three items to Apostle Devin to finish Part 1 and receive +20 stat points.

Part 2 – Infiltrate Balgass Barracks (Kill 20/20/20)

In the second part, Devin orders you to infiltrate Barracks of Balgass.

• Go to Crywolf (58, 237) and talk to Werewolf Quarrel.
• Enter Barracks (party recommended).
• Kill:
  • 20 × Balram (Trainee)
  • 20 × Death Spirit (Trainee)
  • 20 × Soram (Trainee)

Kills count for everyone in the party who is on the quest, so party leveling makes this part much faster.

When you have 20/20/20, return to Apostle Devin, pay the required Zen and complete Part 2 for another +20 stat points.

Part 3 – Kill Dark Elf in Refuge

Finally, Devin sends you to kill the Dark Elf Hero.

• From Barracks, talk to the Gate Keeper at about (121, 168).
• Enter the map Refuge.
• Find and kill Dark Elf (only one can exist at a time; if you don’t see it, wait for respawn).

After defeating Dark Elf, go back to Apostle Devin and complete the dialogue. You receive:

• 3rd class (Blade Master, Grand Master, High Elf, etc.).
• Extra stat points.
• Access to the Master Skill Tree (3rd tree) and level 3 wings.

4th Class Quest – Cent / Sent in Lorencia

The 4th class quest upgrades your 3rd class into the 4th stage: Dragon Knight, Soul Wizard, Noble Elf, Magic Knight, Empire Lord, Dimension Summoner, Fist Blazer, Shining Lancer, Majestic Rune Wizard, Slaughterer, Highest Gun Breaker, Luminous Wizard, Mystic Mage, Mystic Knight, Alchemic Force, and so on.

Requirements

• 3rd class completed
• Regular level 400
• Master level around 400+ (depends on server)
• On official MU: at least Level 750 to enter the test area (often set to 800 on private servers)

Where to start – Cent / Sent in Lorencia

Go to Lorencia and find Cent / Sent at coordinates (131–132, 146–147). Talk to her to open the 4th class quest window.

Stage 1 – Eligibility Test

• Fight Cent herself in the Test Area.
• Defeat her by bringing her HP to 0.
• Talk to her again to complete the stage.

Reward: about +20 stat points.

Stage 2 – New Battle (1)

The second stage checks your farming and survival ability against Deep Dungeon monsters.

• Kill:
  • 5 × Deep Dungeon Skeleton Warrior
  • 5 × Deep Dungeon Cyclops
  • 5 × Deep Dungeon Ghost or Larva (name may vary by server)
• You must also survive for 1 minute in the arena.
• When time is over, monsters disappear and Cent returns. Talk to her to complete.

If you fail to kill enough monsters in time, you can repeat the stage; usually the kill counter is saved, so you only need the remaining kills.

Reward: about +30 stat points.

Stage 3 – New Battle (2)

The final stage is a harder duel against Cent:

• Fight Cent again – she uses more and faster skills.
• Defeat her by reducing her HP to 0.
• Talk to her once more to complete the quest chain.

Rewards:

• +50 stat points
• Scroll of Gray Oblivion (in Gremory Case, usually 7 days)
• 4th class unlocked (Dragon Knight, Soul Wizard, Noble Elf, etc.)
• Skill Enhancement Tree unlocked (Ctrl + A)

5th Class Quest – Eunice & Extra Damage (Level 1200+)

The 5th class quest is the final evolution, giving you new “Extra Damage” powers, access to the 5th skill tree, 5th wings and a special Giant Mount. It is sometimes called the 5th Evolution Quest or Ability Decision quest.

Requirements

• 4th class completed
• Level 1200+ (regular + master/majestic levels, depending on server)
• Enough damage and defense to fight strong bosses

Where to start – Eunice in Devias

Go to Devias and find Eunice at coordinates (193, 12). She is Cent’s older sister and also serves god Lugard as a guardian knight.

When you talk to Eunice, she will send you to the Realm of Privilege / Qualification Space, where you can create a party and then enter the Realm of Trials / Test Area.

Stage 1 – New Power “Nuke”

• Talk to Eunice inside the Test Area to start the first trial.
• You receive the temporary buff Extra Nuke Damage.
• Defeat Eunice and the crimson monsters (Crimson Lycan, Crimson Minos, Crimson Harpy) within about 1 minute.

Reward: permanent Nuke Extra Damage card/skill and access to Stage 2.

Stage 2 – New Power “Bolt”

• Talk to Eunice again in the Test Area.
• You receive the temporary buff Extra Bolt Damage.
• Again defeat Eunice and the crimson monsters within the time limit.

Reward: permanent Bolt Extra Damage card/skill and access to Stage 3.

Stage 3 – New Power “Wide Area”

• Start the third trial with Eunice.
• You receive the temporary buff Extra Wide Area Damage.
• Defeat Eunice and her crimson minions one last time within the time limit.

Final rewards for Stage 3:

• +200 stat points
• Permanent Extra Damage cards: Nuke, Bolt, Wide Area
• Unlock the 5th Skill Tree / Ability Decision (often Ctrl + J)
• 5th class unlocked (Ignition Knight, Darkness Wizard, Royal Elf, Duple Knight, Force Emperor, Endless Summoner, Bloody Fighter, Arcane Lancer, Infinity Rune Wizard, Rogue Slayer, Magnus Gun Crusher, Glory Wizard, Battle Mage, Phantom Pain Knight, Creator, Templar Commander, etc.)
• Unlock the Giant Mount quest and 5th wings (depending on server setup)

Giant Mount Quest (Optional but Recommended)

After finishing the 5th class quest, Eunice offers an extra mission for your exclusive Giant Mount.

• Requirements:
  • 5th class unlocked
  • Level 1200+
  • 300 × Jewel of Creation
• Give 300 Jewel of Creation to Eunice to start the mount trial.
• Fight Eunice while she rides a Giant and defeat her in under 1 minute.

Reward: a random Giant Mount (often Blue, Grey or Red variants, depending on server).

Useful Tips & Common Questions

Do I have to repeat all quests on every character?

Yes. Every character must complete its own 1st, 3rd, 4th and 5th class quests (and usually Marlon) to unlock class evolutions, wings and skill trees. The good news is that once you know the route, each next character is much faster.

Can I do the quests in party?

• Sebina & Marlon: item drops can be farmed in party, but each player needs their own items.
• 3rd class (Apostle Devin): boss drops and Barracks kills count in party as long as everyone has the quest.
• 4th & 5th class: designed for parties – if one member starts the stage, the whole party enters the test area.

What order should I follow on a fresh character?

1. Level to 150 → 1st class change with Sebina.
2. Level to 220 → Marlon quest for combo / Nova and extra stats.
3. Level to 380–400 → 3rd class quest with Apostle Devin.
4. Level up and gear up → 4th class quest with Cent (around level 750–800).
5. Level to 1200+ and farm good gear → 5th class quest with Eunice, then Giant Mount and 5th wings.

Where can I learn more about specific classes?

For full builds, combos and item paths:

• Check your class‑specific guides, for example: Crusader / Paladin Guide.
• Use the Upgrade Guide together with this quest guide to plan your whole character progression (gear + class + quests).
• Use the skill & wings guides to see which skills and wings unlock at each class level.

With this quest guide you now know the full path from your first class change all the way to 5th class, 5th wings and Giant Mount. Use it as a checklist when leveling new characters on MUOnline.ai or any modern Season 20 / Season 21 MU server.