![[Event] Double Upgrade Stone Retrieval](/images/news/legacy/event/2023-12-29-event-double-upgrade-stone-retrieval-event/324880c749114e569e5e0479fe6f41d2.webp)
The Action Anime, **OUTERPLANE
**Hello, Masters! This is GM Lisha.
Upgrade Stone which can be used to transcend a Hero and also can be given as gifts! We have prepared this Hot Time Event to support your rapid growth. Please see below for more details. ◈ Hot Time Event
✨ Schedule Â
 - 12/30 (Sat) 00:00 ~ 12/31 (Sun) 23:59 UTC
   ✨ Details
- Buff events will be held daily during the event period.
Don't miss out on the perfect opportunity to make your heroes stronger!  ✨ Hot Time Details
- Clear Upgrade Stone Retrieval during the event period to earn double the amount of Upgrade Stone.
(Excluding the bonus amount)Â Please NoteÂ
- The above Hot Time will only be applied during the event period.
- The event details are subject to change. Â Thank you.