Although Colors Have No Form

Beside a mysterious morph painting, you find a painter named Claudia, trapped in her nightmares.
Claudia asks you to investigate the world within the painting and gives you a protective talisman. Within the painted world, the talisman transforms into various Echoes to assist you.
You can complete the task with your friends.

Reach Union Level 22 and progress to Main Quest Chapter II Act I to unlock

[About]

Beside a mysterious morph painting, you find a painter named Claudia, trapped in her nightmares.
Claudia asks you to investigate the world within the painting and gives you a protective talisman.

[Eligibility]

Reach Union Level 22, unlock Co-op mode, and unlock the Resonance Nexus in Ragunna City during Main Quest "The Sacred Breeze So Often Breathes."

[Event Rules]

Claudia asks you to investigate the world within the painting and gives you a protective talisman. Within the painted world, the talisman transforms into various Echoes to assist you.
Clear all enemies in the investigation area to advance. The Echoes transformed by the talisman will boost your Resonators' power as you progress.
Clearing enemies before the countdown ends earns extra points. Reach the required stage points for Stage Rewards and the required total points for Point Rewards. The Match feature is available for all challenges, allowing you to team up with other players.

※Only specified Echoes can be equipped in this event. The Echo will replace your main Echo Skill, but activated Sonatas remain effective.