[Developer Note] Thank You for Helping OUTERPLANE Reach No. 1 on the Store Charts

Hello, Masters.

I’m Hyun Moon-su, Development PD for OUTERPLANE.

First, I would like to sincerely thank everyone who has joined us for OUTERPLANE’s 3rd Anniversary.

Far more Masters than we expected have come to OUTERPLANE during the anniversary period. From returning Masters who came back after some time away, to new Masters joining us for the first time, your interest and support have meant a great deal to everyone on the development team.

Thanks to the incredible support you have shown during the 3rd Anniversary, OUTERPLANE was able to reach No. 1 on the store popularity charts.

To show our appreciation, we have prepared a special gift for all Masters.

For this reward, we will be sending an [Irregular Accessory Selection Chest] with 4/4/3/3 substats, which many Masters have been hoping for. The chest has been prepared so that you can choose from a curated selection of highly practical Accessories.

Since this is gear with top-level substats, we hope it will serve as a meaningful reward that helps strengthen the Heroes you care about most.

After the 3rd Anniversary update, we have been closely reviewing play data and community feedback. As we did, we found ourselves thinking that we should have prepared more ways for Masters to enjoy the anniversary for longer.

Many Masters have already completed the rewards from the ongoing 3rd Anniversary events much faster than we expected. To help make the anniversary feel more rewarding and enjoyable, we are planning an additional update that will expand parts of the event and reward lineup.

At the same time, the development team is currently preparing both the 2.0 update and the summer season event. Even so, we wanted to prepare additional content to help keep the 3rd Anniversary momentum going a little longer.

In the June 2 update, the limited Hero [Kitsune of Eternity Tamamo-no-Mae], loved by many Masters, will return alongside her related event stories.

Along with this rerun, we will also be making balance improvements to Tamamo-no-Mae so that she can perform better in the current PvE content, [Dimensional Singularity].

To make it easier for Masters to recruit and transcend her, we are also preparing an additional reward where Masters can obtain 150 Tamamo-no-Mae Pieces after performing a certain number of Recruits.

More than simply bringing back a limited Hero, this rerun is meant to give Masters another chance to enjoy a large-scale event story series.

The following three connected event stories will return in order, week by week, with various rewards available along the way.

• Night of the Living Soulslayer
• Hot Spring Inn in a Winter Country
• Never Stop Soulslayers!

We hope that Masters who joined us during the 3rd Anniversary will be able to experience more of OUTERPLANE’s different stories, moods, and charms through these events.

Once again, thank you to all Masters who have been part of OUTERPLANE’s 3rd Anniversary.

We will continue doing our best to repay your support with even more fun and enjoyable content.

Thank you.

[Irregular Accessory Selection Chest Mailbox Reward]

• Eligibility: All Masters
• Period: After the maintenance on June 2, 2026 – September 7, 2026 23:59 UTC
• Mailbox Rewards:
Irregular Accessory Selection Chest ×1
Refined Glunite ×4
Legendary Reforge Catalyst ×250
Gold ×2,500,000

[Developer Note Commemorative Gift]

• Coupon Code: OUTERLETTERJUN
• Period: Until June 30, 2026 14:59 UTC
• Coupon Reward: Free Ether ×500