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| Voice Actor
| Recruit Condition
| Preferred Weapon
|Minimum ATK||Maximum ATK||Minimum HP||Maximum HP|
|800||5000 (+200)*||220||1450 (+200)*|
| ||Ice||6 turns||-|| Lvl 1 |
⇧ Lvl 55
| Deals Water attribute damage (small) to target enemy. |
Level 55: Damage ratio is increased.
| ||Clear|| 7 turns|
|-|| Lvl 1 |
⇧ Lvl 65
|Removes one debuff from all allies.|
| ||Heal II||5 turns||-|| Lvl 35 ||Recovers HP of all allies (Maximum of 750).|
|Sore Loser||1||Attack Up|
|Elemental Gust||Deals Water attribute damage (large)|
A young girl of Valtz. Her immaturities stand out, however her resolve to find a new magic master after her former abandoned her is inspiring.
- Her 4th uncap is unlocked by completing chapter 42.
- Io gains an additional 200 HP by completing a Cross-Fate episode with Ryan titled Worrisome Presents-choosing.
- Io gains an additional 200 Attack by completing a Cross-Fate episode Episode with Rackam and Katalina titled Lyria's Birthday. This is a bonus that comes with the purchase of the Granblue Fantasy Set sold at Comic Market 87.