- World Boss: Evil Half Dragon Sarokkan
- Time: 22:00 Server time every Saturday
- Where: Icy Snowfield (429,604) in Primal World (Story Mode)
- When it is killed, a treasure chest will spawn containing x30 Perfect Voucher (10M). Six other chests will spawn randomly at six different locations, listed below. Five of them contain Perfect Voucher (10M) x1, and one contains Perfect Voucher (10M) x30.
- Primal World (Story Mode): Icy Snowfield (439,612)
- Primal World (Story Mode): Northern Luneskan Frontier (451,609)
- Primal World (Story Mode): Northern Luneskan Frontier (462,607)
- Primal World (Story Mode): Glacial Prison (438,586)
- Primal World (Story Mode): Glacial Prison (421,585)
Primal World (Story Mode): Glacial Prison (444,598)
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