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Quirk System
This guide covers Quirk System in Outerplane.
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After clearing Season 1 stage 9-5 : The Responsibility of the Guilty, you will unlock the Quirk system.
Quirks are a permanent, account-wide enhancement system available in the Base → Quirk menu. They provide additional stats for your heroes or utility effects for your account, and are unlocked using materials such as , , and .
Counteract Strong Enemies: bonuses that enhance your team or weaken the enemy when facing bosses
Class Enhancement: stat boosts for heroes based on their class and subclass
Element Enhancement: stat boosts based on hero elements
Utility: account-wide bonuses (EXP gain, drop rate, crafting cost, etc.)
Adventure License: bonuses that only apply in Adventure License modeAdventure License, which requires level 9).In the early game, your first priority should be Counteract Strong Enemies quirks, as their bonuses apply universally — regardless of enemy, game mode, hero class, or element.
Next, focus on Class Enhancement, starting with the class of your main DPS. Then move on to Element Enhancement, prioritizing the element your team relies on the most.
Finally, consider Utility quirks, which offer account-wide bonuses such as EXP gain, drop rate, crafting discounts — and most notably, an increase to your stamina cap. While the stamina cap boost is the most impactful perk in this category, Utility quirks as a whole still remain a lower priority early on.
As for the Adventure License tree: this is an endgame system and shouldn’t be your early focus. It’s also the only tree that requires , which is exclusively obtained from Adventure License mode.
Let’s take a common early team: 
瓦伦塔茵 
艾耶尔 
单子 艾娃 
德雷坎.
SYS_CLASS_STRIKER tree — especially the left path, which benefits 
SYS_CLASS_NAME_ATTACKER like Aer and Drakhan.
SYS_ELEMENT_NAME_FIRE tree (Valentine and Aer) — one of your early goals will be farming Chimera for Speed gear.
SYS_ELEMENT_NAME_LIGHT quirks for Drakhan and Monad Eva.This is just one example — always adapt your quirk investments based on your team composition and progression goals.