| Name | Cooldown | Description | SP | Required |
|---|---|---|---|---|
| Radiant Aether | 4 | During combat, treats foe's Def/Res as if reduced by 50%. Restores HP = 50% of damage dealt. | 500 | Sol Luna |
| This skill can only be equipped by its original unit. | ||||
* Unused restrictions: Cannot use: 
Notes[ | ]
- Has the same effect as
Aether. - The healing calculation will always use the final damage number for the damage dealt.
- Radiant Aether's healing effect will not work if the user is prevented from recovering HP during combat from effects such as
Fatal Smoke 4, Incurable+, or 
Deep Wounds, unless the user has an effect that neutralizes or reduces the effect of Deep Wounds during combat such as 
Divine Nectar or 
Breath of Life 4.
List of owners[ | ]
| Unit | Skill chain | |||
|---|---|---|---|---|
 | Daylight 5  | Sol 5 | Radiant Aether 5 | – |
 | Daylight 5 | Sol 5 | Radiant Aether 5 | – |
 | Daylight 5 | Sol 5 | Radiant Aether 5 | Radiant Aether II 5 |
In other languages[ | ]
| Language | Name |
|---|---|
| Japanese | 蒼の天空 |
| German | Strahlender Aithir |
| Spanish (Europe) | Éter fulgurante |
| Spanish (Latin America) | Éter fulgurante |
| French | Éther radieux |
| Italian | Etere fiammante |
| Traditional Chinese (Taiwan) | 蒼藍天空 |
| Portuguese | Éter radiante |