Story Quest: Palace Under Attack
Recommended Level: 42
To activate the quest, teleport to "Valrika's Laboratory -> Laboratory - Hall", then talk to Cheryl. Also talk to Kina and Ez for 2 more stories.
- Talk to Cheryl unlocks "Palace Under Attack" story quest.
- Talk to Kina unlocks "Kina and Owen" story quest.
- Talk to Ez unlocks "Ez and the Guild" story quest.

Vibra Palace
Teleport to "Vibra Royal Capital -> Royal Capital - Center", then head north to the Royal Palace (A).

As soon as you enter the palace, you'll see a cutscene where the palace is under attack. Walk toward those Mechteria soldier to initiate a fight. They are just regular mobs.
There are 4 items here:

- (I-01) Onyx L: Chest on the right.
- (I-02) Whetstone: Chest on the left.
- Go upstairs and fight a few battles.
- (I-03) Cyclone Ring: Chest on the left.
- (I-04) Mechterite: Top-right corner, half hidden behind the flooding Mechteria soldier.
- Save your game and prepare for a boss fight.
Preparation
- Recommended Party: Cheryl, Ez, Valrika
- Note: Cheryl cannot be swapped during the battle.
- Equip Snow Quartz on everyone, Ruby XL on Cheryl and Valrika for extra damage.
Vibra Palace - Great Hall
Once you enter the palace's great hall, the fight with the boss initiated automatically.
You fought this boss before in East Vence. The only way to damage this boss is when it opens its mouth up.
Steal:
- (I-05) SP Capsule
Strategy:
- Cheryl's "Knight Impact EX" and Valrika's "Rain Arrow +2" are the best skills to deal damage to the boss and its 4 minions when it opens its mouth. Other than that, it also has other attacks that has negative effects, but you can cure them with items.
- It will call the minions back but it's gonna take a while.
Rewards:
- Cheryl's Divine Artifact Divine Tiara upgraded
- Ice Attack 2
- Tension Skill-boosting skills passive skills unlocked.

- Talk to Sebastian for a side quest "Satisfying Sebastian (Q-21)".
- (Optional): There is a hidden dialogue between the King and Sebastian when you examine the queen's chair and choose "Sit" (the chair next to the king).
- (I-06) Emerald XL: Once you regained control, go behind the throne for an item.
- (I-07) Magic Crystal Powder (Tan's Growth Map): Exit the throne room to the great hall you'll see one more chest.
Royal Capital - Coliseum
To complete the quest, you have fight Sebastian at the "Coliseum". Now teleport to "Vibra Royal Capital -> Royal Capital - Center" then walk east to the Coliseum.

Pick up some items before entering. There are items on both sides of the entrance:

- (I-08) Energy Drink x15: Left side.
- (I-09) Mechterite: Left side (the last Mechterite).
- (I-10) Energy Drink x100: Talk to the guy in purple on your right side near the gate.
- (I-11) Protein Drink x15: Right side.
Preparation
- Note: Leo, Kina, and Cheryl cannot be swapped during the battle.
- Unlock "Heal All" and "Barrier All" for Kina.
Boss: Sebastian x3 (B-42)
Enter the Coliseum to fight Sebastian. The fight has phases, 1 vs 1 and 3 vs 3.
Steal:
- (I-12) Elixir (you can either steal in the phase 1 or 2)
Strategy:
- Leo immediately uses "Blade Break", then keep hitting him with "Samidare (Fire+2)". Heal if needed.

Strategy:
- Always use "Enchanting Mist" on the 3 of them whenever they are in formation because you can hit 3 of them. It has 50/50 chance of success but it worth it.
- Sebastian has all his skills in phase 1, plus 2 new skills "Charging Formation" and "Defensive Formation".
- "Charging Formation" is more dangerous because 3 of them will use "Charge" attack. Kina should use "Barrier All" to lower the damage and fully heal your team while Leo and Cheryl attack.
- In "Defensive Formation", 2 of them, will guard protecting Sebastian while he uses Desperation (boost attack lower defense) to attack. Leo can use "Blade Break" on one of them, this skill has a chance to break their guard allow you to deal full damage.
- When one of them knocked out, have Leo steal "Elixir" from Sebastian.
- As long as your healing out pace their attack, you'll be okay.
Once you defeated him, you'll be asked to choose "Yes" or "No".
- Yes: continue the story.
- No: Sebastian insists that you swear to protect the princess, then he'll ask again and again until you say "Yes".
Rewards:
- (I-13) Ultimate Fists (Zinikr's weapon): Equip on Zinikr immediately.
Valrika's Laboratory
At this point, you should have collected all Mechterite. Let's teleport to Valrika's lab and trade the remaining Mechterite for the last item.

Exchange 9 Mechterites for Hermes' Brilliance.
- (I-13) Hermes' Brilliance