Based on the gloves should be Stelle but, perhaps the artist mistake

Dixie48 said:

Based on the gloves should be Stelle but, perhaps the artist mistake

No that's Caelus. We can see it's kind of fingerless at the index finger.

Edit. You're right, it's both fingerless at the index with the thumb fully closed. I guess with this error you can decide whoever it is you want.

Edit 2. Nvm, the gloves may be wrong but it's definitely Caelus based on the source.