COSM-GAME OUTERPLANE Adds Titia, Resonance Rin, Area 4 and Chimera
OUTERPLANE's September 8 update adds two Heroes, Titia and Resonance Rin, alongside New Story Area 4 and the new Chimera boss for Dimensional Singularity. The update also opens a Resonance Rin check-in event, a Knight of Hope Meteos Joint Challenge season, Daily Missions and Spin! Lucky Roulette, and the Noble Justice Titia Battle Pass. Titia receives her own Side Story, while Auto Battle and Continuous Battle support expand across additional PvE content.
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September 8 Update Overview
OUTERPLANE's September 8 update is a multi-part content release led by Titia, Resonance Rin, the continuation of the renewed main story and a new Dimensional Singularity encounter. It also introduces several limited activities and expands automation options across PvE content.
| Content | What was added |
|---|---|
| Titia | New Fire Mage Hero, Pickup Summon, Side Story and Battle Pass costume |
| Resonance Rin | New Water Striker Hero distributed through a check-in event |
| Story | New Story Area 4 in Normal and Hard difficulties |
| Dimensional Singularity | New Earth boss Chimera |
| Joint Challenge | New Knight of Hope Meteos season |
| Events | Daily Missions and Spin! Lucky Roulette |
| Battle Pass | Noble Justice Titia costume and new pass rewards |
| PvE automation | Expanded Auto Battle and Continuous Battle support |
Titia Joins as a Fire Mage
Titia is a Fire-element Mage with the Wizard sub-class. Her Pickup period runs from September 8 after maintenance through October 6 before maintenance. Her kit focuses heavily on Defense reduction, Penetration and fighting Earth targets and bosses.
| Hero detail | Titia |
|---|---|
| Element | Fire |
| Battle Type | Mage |
| Sub-class | Wizard |
| Pickup period | September 8 after maintenance to October 6 before maintenance |
| Exclusive Equipment | Astraea |
Titia's Skills
| Skill | Key effect |
|---|---|
| Airtight Rebuttal | Attacks one enemy and can reduce Defense for two turns while ignoring Resilience. At Skill Level 5, the activation chance becomes 100%. |
| Sharp Argument | Attacks one enemy and grants Penetration to all allies. Against an Earth target, Titia also gains 20% Priority. |
| Closing Argument | Reduces the target's Damage Reduction and can stack the effect up to five times. Against bosses, it ignores 30% Defense, and a four-Fire-Hero team also reduces all allies' skill cooldowns by one turn. |
Astraea reinforces that role. Its main stat increases damage against Earth targets, while its unique effect raises damage dealt to Earth enemies by 50%. At Unique Effect Level 10, Titia can also build a stacking damage increase for all Fire allies after taking actions.
Titia also receives a Side Story called Crime and Liquor. It can be entered from her Affinity screen, and clearing all stages awards 10 Pieces of Titia.
Note: Titia's Japanese voice-over was scheduled to be added through a later data update on or after September 10. The update notice also states that an English voice-over will not be available for Titia.
Resonance Rin Arrives Through a Check-In Event
Resonance Rin is a Water-element Striker with the Attacker sub-class. Unlike Titia's Pickup Summon, Resonance Rin is directly tied to a limited check-in event running from September 8 after maintenance through September 22 before maintenance.
| Hero detail | Resonance Rin |
|---|---|
| Element | Water |
| Battle Type | Striker |
| Sub-class | Attacker |
| Acquisition | Resonance Rin Check-In Event |
| Exclusive Equipment | Ame-no-Murakumo |
Day 1 of the event grants Resonance Rin at Level 100, Skill Level 1 and 5-star Transcendence. Pieces of Resonance Rin are then distributed on Days 2, 5 and 10, with 150 Pieces awarded on each of those days. The notice states that these rewards allow players to ultimately reach 6-star Transcendence.
| Skill | Key effect |
|---|---|
| Falling Moon | Attacks one enemy and increases all allies' Critical Damage by 20%, stacking up to three times. |
| One Blade - Moon Slash | Attacks all enemies, can reset its own cooldown while Resonance Rin has a buff and builds her Attack by 15% per use up to three stacks. |
| The One True Sword Path | Grants Penetration before an all-enemy attack and then raises Resonance Rin's Priority by 100%. At Skill Level 5 it also activates Iai. |
Ame-no-Murakumo increases damage against Fire targets and gives Resonance Rin 50% more damage against bosses. Its Level 10 unique effect further increases damage dealt to Fire enemies by 75%.
Note: Resonance Rin's Bond content is not included in this update and is planned for the next update. She can use Rin's costumes, but Rin and Resonance Rin cannot equip the same costume at the same time.
New Story Area 4 Continues the Renewed Story
New Story Area 4 expands the storyline centered on OUTERPLANE's newer protagonist and companions. The earlier Story Renewal established a new opening set in Mirsha after Season 4, while retaining K's existing storyline as the Origin Story. Area 4 continues that newer story path.
Normal and Hard versions of Area 4 are available through Adventure → Story. New Story Normal Area 3 must be cleared before Normal Area 4 unlocks, and New Story Hard Area 3 must be cleared before Hard Area 4 becomes available.
Area achievement rewards include items such as Artisan's Hammer, Intermediate Skill Manual and Gold. Twelve additional Guide Quest missions are also added for Area 4, split evenly between Story and Story Hard. Their listed rewards include Legendary Reforge Catalyst, Transistone (Total) and a 5-star Legendary Accessory Selection Chest.
Chimera Becomes the New Dimensional Singularity Boss
The update adds Chimera, an Earth-element boss for Dimensional Singularity. The encounter is specifically structured to reward Fire Heroes and Penetration effects. Dimensional Singularity remains available each week from Wednesday at 00:00 UTC through Saturday at 23:59 UTC.
| Mechanic | Effect |
|---|---|
| Fire team bonus | Chimera takes 50% additional damage against a team with three Fire Heroes and 120% additional damage against four Fire Heroes. |
| Penetration weakness | Chimera takes 50% increased damage from targets with Increased Penetration. |
| Poison attack | Its third skill attacks all enemies and applies an unremovable Poisoned effect for two turns. |
| Enraged cycle | Chimera enters Enraged every four actions, gains irremovable Increased Attack and Damage Reduction for three turns, and restores 10% WG. |
| Enraged Ultimate | Removes three buffs from all enemies and deals heavy damage to the entire team. |
Chimera's passive design also limits Cursed and Fixed Damage to 50,000 and gives it a broad immunity list covering effects including Stunned, Petrified, Silenced, Taunted, Frozen, Continuous Damage, Priority Decrease and Buff Removal.
Joint Challenge, Roulette and the New Battle Pass
A new Knight of Hope Meteos Joint Challenge season runs from September 8 after maintenance until September 15 at 00:00 UTC. Normal, Hard and Very Hard difficulties are available, each with a 20-turn limit. Battles award Ranking Points and Joint Challenge Coins, which can be used in the event Shop, while server-wide milestone rewards depend on accumulated points.
Daily Missions and Spin! Lucky Roulette run from September 8 at 00:00 UTC until September 22 at 00:00 UTC. Daily Missions award Event Coins, and three Event Coins are required for one roulette spin. Additional rewards unlock according to the cumulative number of coins spent.
The new Battle Pass features the Noble Justice Titia costume. The pass starts after the September 8 maintenance, purchases remain available until October 5 at 13:00 UTC, and the Battle Pass itself ends before maintenance on October 6. The Special Pass includes the Noble Justice Titia costume and a 3-star Hero Selection Ticket.
Auto Battle Expands Across More PvE Content
The update also expands Auto Battle beyond Adventure and Skyward Tower into more major PvE activities. Continuous Battle can now be configured from the Formation screen as well as from the battle results screen, and its settings have been reorganized for different content types.
- Story and Event Dungeon support the revised automation flow.
- Hypnotic Frog Hall and Ark Raid are included.
- Special Request is included.
- Skyward Tower continues using its existing Auto Battle button for automatic climbing.
- During automatic progression, the results screen can be used to decide whether to continue to the next battle.
Titia and Resonance Rin are also added to the selectable Hero pool for Tactics League, where the usual Level 100, Skill Level 5 and Transcendence Stage 6 presets apply.
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FAQ
6 questionsThe update became available after maintenance on September 8, 2026.
Titia is a new Fire Mage with the Wizard sub-class. Her Pickup period runs from September 8 after maintenance until October 6 before maintenance.
The Resonance Rin Check-In Event gives Resonance Rin on Day 1 at Level 100, Skill Level 1 and 5-star Transcendence. Later check-in rewards provide Pieces of Resonance Rin that allow her to ultimately reach 6-star Transcendence.
New Story Normal Area 4 requires clearing New Story Normal Area 3, while New Story Hard Area 4 requires clearing New Story Hard Area 3.
Chimera is an Earth-element Dimensional Singularity boss designed around Fire Heroes and Penetration effects. It takes substantially more damage from teams containing three or four Fire Heroes and from attackers with Increased Penetration.
The update adds the Knight of Hope Meteos Joint Challenge season, Daily Missions and Spin! Lucky Roulette, the Noble Justice Titia Battle Pass, Titia and Resonance Rin in Tactics League, and expanded Auto Battle and Continuous Battle support.