Key for Inventory Expansion [Quest]
The Key of Sinan
An ancient relic. A spiritual pact. A price that never sleeps.
Origin
Long ago, in the mountains of Sinan, an ancient technology was created by bounty hunters. It was known as the Key of Sinan — a mysterious artifact capable of increasing the carrying capacity of whoever possessed it. With it, one could store a massive number of items, as if the space inside their bags were infinite.
It was said that the key was not merely an invention but the result of forgotten spiritual knowledge — something that blended ancient magic and science. For that reason, few could use it without paying a price.
The Encounter
One day, a lone warrior heard about this key. He traveled through the deserts near Sinan in search of strength and riches. During his journey, he was approached by a messenger from the Army of Souls — a mysterious woman who bore the army’s symbol on her cloak. She approached him with a calm yet firm voice.
The Messenger
“There is an ancient technology that can increase your carrying capacity. It was discovered long ago by the bounty hunters of Sinan. I can grant you the key to that knowledge, but I want something in return... a monster. Choose the one you wish to offer me.”
The warrior, curious yet cautious, thought for a moment. He knew well the legends of the Army of Souls — a group that captured dangerous creatures to preserve the balance between the world of the living and the realm of spirits.
The Exchange
At last, he chose a monster named Qoomtra — a creature with an insect-like body, transparent wings, and eyes that glowed like embers. It was said that Qoomtra fed on memories and appeared only before those who had broken ancient promises.
The messenger accepted the choice. With a seal of blue energy, she bound the monster’s soul inside the Key of Sinan and handed it to the warrior. The moment the key touched his backpack, something changed. The inner space expanded in an unbelievable way — now it could hold weapons, armor, treasures, and scrolls that once had been far too heavy.
Weapons
HeavyTreasures
RareScrolls
AncientArmor
CompleteThe Price of Power
The warrior felt powerful. But in the nights that followed, he began to hear whispers coming from inside his backpack — faint voices, almost like forgotten dreams. Sometimes he heard the names of people he once knew; other times, words in an ancient tongue that seemed to ask for something in return.
The Messenger’s Warning
“The Key of Sinan does not create space from nothing. It merely shifts the balance of the world. Every item you carry has a cost, and that cost is borne by the monster you sacrificed. If you abuse the key’s power, Qoomtra will awaken... and take something precious — your memories, your emotions, or even your luck.”
The warrior understood the risk but chose to continue. He knew that the power to carry the impossible came with responsibility.
A Living Legend
Since then, travelers have told stories about him — the Warrior of the Key of Sinan — a man said to carry entire cities within his backpack.
But they also say that, on silent nights, he still hears the whisper of Qoomtra, watching him from the shadows of the past.
Quest details
Key for Inventory Expansion (1).
Required Core Monsters
| Option 1 | Option 2 | Option 3 | Option 4 | Option 5 |
|---|---|---|---|---|
 RFairudo (Lv. 165)  |
 Qoomtra (Lv. 165)  |
Snake King (Lv. 184)  |
Dino King (Lv. 170)  |
 Ultra Soul (Lv. 170)  |
Key for Inventory Expansion (1). Method of use: Double click to open the inventory expansor (1)
It will give you:
:: +54 Slots to store item.
:: +54 Slots to store core.
As the new system proves to be stable and free of issues, the level requirement will gradually be reduced until it reaches level 150.
