Sky Tower (Lv. 17 - 23)

• Dragonoid Nest (Lv. 17 - 20)
  
  

Adventurers that have finally arrived at the notorious Sky Tower will encounter inconceivably powerful dragonoids,
influenced by the magic powers of the Middle Ocean, at its entrance. 
These beasts are fiercely determined to destroy all intruders in their territory, 
and you'll have no choice but to fight against the dragonoids as long as you wish to enter Sky Tower.
- Boss Monster: Lakius

• Puppet Museum (Lv. 19 - 21)
  
  

A museum filled with stone statues which all bear a ghastly resemblance to humans. 
Beware: a grotesque creature may silently approach you, whispering into your ear, 
"You'd be the perfect material. My masters will be so happy to see you."
- Boss Monster: Master Dogrie

• Golem Tower (Lv. 20 - 22)
  
  

Magic creatures mentioned in various historical documents of Arad, Golems have worked as laborers and guards for mages since ancient times. 
Arriving at the entrance to Sky Tower's Core, Arad's adventurers discovered a tightly shut gate leading to the next elevated floor, 
but it was being guarded by a giant golden golem surrounded by countless other golems. 
Perhaps the golden golem holds the key to the gate? Arad's Adventurers have now begun their infiltration of Sky Tower's Core.
- Boss Monster: Gold Platoni

• Vestibule of Darkness (Lv. 21 - 23)
  
  

The stone statues of soldiers have suddenly started to move around in the pitch dark, now ambushing adventurers. 
Unless you defeat all these statues of the royal guards known as the Expellers of the Light Castellan, you will never be able to reach the Core level of the Sky Tower. 
Will you be able to defeat the vigilant Expellers? 
They're waiting for you, their gleaming red eyes watching out for you in the dark.
- Boss Monster: Heaven Expeller

• Castellan's Chamber (Lv. 22 - 24)
  
  

A warrior with a glowing aura appeared once a long time ago, accompanied by an army at Sky Tower, the bridge between Arad and Empyrean. 
The warrior and his army slaughtered every living creature in Sky Tower with overwhelming force, cutting off all connections between the two worlds. 
Over a thousand years later, Sky Tower finally re-revealed its presence in the sky. 
Since then, curious adventurers have realized that they now have the opportunity to meet the legendary "Light Castellan." 
No one was strong enough to defeat the Castellan a thousand years ago, but you'll have to accomplish the impossible in order to unlock the gate to Empyrean.
- Boss Monster: Light Castellan Sieghart

• Floating Castle (Lv. 23 - 25)
  
  

This magical castle was one of the bases for dragon tyrant Bakal's army when he ruled Empyrean. 
Upon Bakal's death, his army was disbanded, and the abandoned castle started drifting away, floating aimlessly in the sky: this is why this floating fortress was named the Floating Castle.
Many fear that the world will suffer a cataclysmic disaster if this Floating Castle is to ever float too close to Sky Tower...
- Boss Monster: Evil Eye