Kachua's Secret Box
Kachua's Secret Box allows players to exchange one Kachua's Secret Key for a guaranteed reward and one random reward from the current prize pool.
NPC Locations
- Kachua Key Seller: Prontera (140, 167)
- Kachua's Secret Box: Prontera (141, 170)
Kachua's Secret Key
- Item: Kachua's Secret Key
- Item ID: 23919
- One key is consumed whenever the box is opened.
Purchasing a Key
Talk to the Kachua Key Seller in Prontera and choose one of the following payment methods.
Option 1: Cash Points
- Cost: 200 Cash Points
- Receives: 1 Kachua's Secret Key
- Bonus: 1 Gift Box (Item ID: 101604)
- Bonus: 5 Battle Manual x3 (Item ID: 14545)
- Bonus: 10 Yggdrasill Berry Box (10) (Item ID: 14232)
Option 2: Bags of Gold Coins
- Cost: 2 Bags of Gold Coins (Item ID: 670)
- Receives: 1 Kachua's Secret Key
- The Cash Point bonus package is not included with this option.
How to Open the Box
- Obtain at least one Kachua's Secret Key.
- Make sure the inventory has sufficient free slots and at least 10% free weight capacity.
- Talk to Kachua's Secret Box at Prontera (141, 170).
- Select Open the box.
- One Kachua's Secret Key will be consumed.
- The rewards will be delivered directly to the inventory and announced to the server.
Rewards Per Opening
Each successful opening grants:
- Guaranteed reward: 1 Cachua Coupon
- Random reward: 1 item from the random reward pool below
The chance values below are calculated from a total random-pool weight of 4218. The server uses relative weights, meaning Chance = Item Rate / Total Rate.
Random Reward List
| No. | Reward | Aegis Name | Quantity | Approx. Chance |
|---|---|---|---|---|
| 1 | Special Exchange Coupon | Special_Exchange_Coupon
|
4 | 0.119% |
| 2 | High Refine Guarantee | High_Refine_Guarantee
|
1 | 0.119% |
| 3 | Evt 20th Return2 | Evt_20th_Return2
|
1 | 0.119% |
| 4 | Gold Coin Moneybag | Gold_Coin_Moneybag
|
10 | 0.119% |
| 5 | Silver Coin Moneybag | Silver_Coin_Moneybag
|
10 | 0.119% |
| 6 | Refine Guarantee | Refine_Guarantee
|
1 | 1.968% |
| 7 | Sealed Card | Sealed_Card
|
1 | 0.237% |
| 8 | AceCard Box | AceCard_Box
|
1 | 0.237% |
| 9 | Sealed Card2 | Sealed_Card2
|
1 | 0.237% |
| 10 | Sealed Card3 | Sealed_Card3
|
1 | 0.237% |
| 11 | Slayer Furious | Slayer_Furious
|
1 | 1.185% |
| 12 | Trident Furious | Trident_Furious
|
1 | 1.185% |
| 13 | Demonius Furious | Demonius_Furious
|
1 | 1.185% |
| 14 | Demonsword Furious | Demonsword_Furious
|
1 | 1.185% |
| 15 | Foxtail Furious | Foxtail_Furious
|
1 | 1.185% |
| 16 | Setaria Furious | Setaria_Furious
|
1 | 1.185% |
| 17 | FuriousCirclet DK | FuriousCirclet_DK
|
1 | 1.185% |
| 18 | FuriousCirclet ABC | FuriousCirclet_ABC
|
1 | 1.185% |
| 19 | FuriousCirclet SH | FuriousCirclet_SH
|
1 | 1.185% |
| 20 | FuriousBoots | FuriousBoots
|
1 | 1.185% |
| 21 | Refine Furious | Refine_Furious
|
1 | 1.185% |
| 22 | S Master Weapon | S_Master_Weapon
|
1 | 0.474% |
| 23 | S Master Shield | S_Master_Shield
|
1 | 0.474% |
| 24 | M Armor Box | M_Armor_Box
|
1 | 2.371% |
| 25 | M Shoes Box | M_Shoes_Box
|
1 | 2.371% |
| 26 | M Pendant Box | M_Pendant_Box
|
1 | 2.371% |
| 27 | M Earring Box | M_Earring_Box
|
1 | 2.371% |
| 28 | Blacksmith Bless Box 3 | Blacksmith_Bless_Box_3
|
1 | 0.711% |
| 29 | Shadow Hammer Box 3 | Shadow_Hammer_Box_3
|
1 | 0.711% |
| 30 | Shadow Up Box | Shadow_Up_Box
|
1 | 9.483% |
| 31 | Blacksmith Blessing | Blacksmith_Blessing
|
1 | 9.483% |
| 32 | Shadow Refine Hammer | Shadow_Refine_Hammer
|
1 | 9.483% |
| 33 | Skill Shadow Cube | Skill_Shadow_Cube
|
1 | 9.957% |
| 34 | All Shadow Cube | All_Shadow_Cube
|
1 | 7.112% |
| 35 | Shadow R M Box | Shadow_R_M_Box_
|
1 | 7.112% |
| 36 | C Wing Of Fly 5Day Box | C_Wing_Of_Fly_5Day_Box_
|
1 | 9.483% |
| 37 | Brown Dia Box 3 7 | Brown_Dia_Box_3_7
|
1 | 9.483% |
Important Notes
- The guaranteed Cachua Coupon is awarded separately from the random reward.
- Random rewards are not guaranteed. Each opening performs a new selection from the reward pool.
- Rates are relative weights and are not independent percentages.
- Keep sufficient inventory space and free weight capacity before opening the box.
- Reward contents, quantities, and rates may be revised during future server updates.
- If the inventory check fails, clear inventory space or reduce carried weight before trying again.
Quick Reference
- Kachua's Secret Key ID: 23919
- Key Seller: Prontera (140, 167)
- Box NPC: Prontera (141, 170)
- Cost per opening: 1 Kachua's Secret Key
- Guaranteed reward: 1 Cachua Coupon
- Random rewards per opening: 1
Reward list updated: 30 September 2026