# Cleaning Event
Open or join a wave-clearing event, then clean the arena until the final reward wave.
## Quick Guide
**Availability:** Available in the current event rotation.
* Talk to Cleaning Event NPC in Prontera.
* Join the room once the event is open.
* Clear waves with the group and survive until the end.
## NPC Location
| Preview | NPC | Where |
| ------------------------------------------------------------------------------------- | ------------------ | ------------------ |
| 
| Cleaning Event NPC | `prontera 155 147` |
| 
| Cleaning Manager | `pvp_n_3-5 99 101` |
## Items
| Role | Item | Amount / use |
| ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ |
| Reward | 
Kaho Light Darkness Crown ID: 19751
| 1 |
## Notes
* A player can pay to open the event when it is not already running.
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