Petruska Marlen

The eldest member of the 384th Wyvern Squad, Petra was originally the captain until she suffered a gunshot wound during a previous battle. When she was wounded, she was forced to accept the end of her career as a wyvern, and the fact that she could no longer turn into a dragon. However, she was allowed to become the supreme commander of the Wyvern Squad due to her immense popularity.

With her wings clipped, she was forced to hand over her title as captain to her successor. Since then, it appears she's had a lot on her mind, but she still commands respect among other squad members, even now.