Quests/Okeanos
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Third Singularity - Sealed Ends of the Four Seas: Okeanos

The Okeanos area was added to the game on November 5, 2015 (JP) and September 28, 2017 (EN). It is the location of Chapter 3 of the main story.
Main Story Clear Reward:
- Free Servant: 3★
David
- Unlocks the summoning of 4★
Medea (Lily) in all Quartz-Type Summoning.
Unlocks Interludes:
Servant | Requirement | Interlude Reward | Interlude |
---|---|---|---|
Anne Bonny & Mary Read | Bond 2, 1st Ascension, clear Okeanos | NP Upgrade C+ to C++ |
Capture Captain Kidd's Treasure |
Asterios | Bond 3, 1st Ascension, clear Okeanos | NP Upgrade EX ► 'EX' (Further decreases the Attack and Defense of all enemies by 40% (1 turn)) |
This Hand, For You |
Atalante | Bond 3, 1st Ascension, clear Okeanos | Skill Upgrade Beyond Arcadia B ► A |
Smile of the Goddess |
Edward Teach | Bond 1, 1st Ascension, clear Okeanos | Saint Quartz | A Man's Battle |
Francis Drake | Bond 1, 1st Ascension, clear Okeanos | NP Upgrade A to A+ |
Treasure Island |
Francis Drake | Bond 5, 3rd Ascension, clear Okeanos | Saint Quartz | Pioneer of the Stars |
Hektor | Bond 3, 1st Ascension, clear Okeanos | NP Upgrade A- to A (Reduce all enemies' DEF (3 turns, was 1 turn)) |
Trojan Guardian |
Medea | Bond 4, 2nd Ascension, clear Okeanos | NP Upgrade C to C+ |
Witch's Backyard |
Medea (Lily) | Bond 2, 1st Ascension, clear Okeanos | NP Upgrade C- to C |
Close Friend of a Witch |
Orion | Bond 2, 1st Ascension, clear Okeanos | Saint Quartz | Unsweet Honeymoon |
Tamamo Cat | Bond 3, 1st Ascension, clear Okeanos | Saint Quartz | Overflowing Wildness |
Zhuge Liang (Lord El-Melloi II) | Bond 4, 2nd Ascension, clear Okeanos | Saint Quartz | Endless Sea |
Zhuge Liang (Lord El-Melloi II) | Bond 5, 4th Ascension, clear Okeanos | NP Upgrade C- to C (Boost DEF down by 20% and Curse from 500/3 turns to 1000/6) |
Truth of the Ascension |