This is a guide for The Corruption of the Chaos side quest in Astria Ascending.
Obtained: Speak with Rumeh in Peyska Spring after picking Eko’s main job
Rewards: Alpherg x1, Eko-White Mage Token x1, 5000 Lums
Talk to Nobi at the Harmonia Tower
Speak with Nobi on Floor 000.
Investigate the corruption of the Peyska Spring Sewers
Travel to the Peyska Spring Sewers and head west. When you reach the dead end, you’ll see a red glowing orb. Interact with it to start a battle against a Corrupted Samiri. Its weak to earth and light attacks, resists lightning and drains air.
Go back to talk to Nobi at the Harmonia Tower
Return to Nobi and speak with her.
Consecrate the book at the Underground Passage
Travel to the Underground Passage and head for the middle part of the area to find the red glowing orb on the ground. Interact with it then deal with the Corrupted Ornate that shows up. Its weak to water, resists air and drains lightning.
Consecrate the book at the Libra Temple
Fast travel to the Shamash Prayer Room at the Libra Temple then go through the next area to the east to find a glowing orb on the ground. Interact with it.
Consecrate the book at the Harmonia Tower
Make your way to Haevelion Port and interact with the glowing yellow flowerbed near the door to the Council Room.
Go back to talk to Nobi at the Harmonia Tower
Return to Nobi on Floor 000 and speak with her to trigger a fight. Defeat the Corrupted Mizufana.
Go back to talk to Rumeh in Peyska Spring
Travel to Peyska Spring and speak with Rumeh to complete the quest.