How to unlock Edit
- Main article: Costumes
To obtain this trophy, all you need to do is obtain the "Sea Cat" costume, which is Kat's military uniform. It is obtained after a brief conversation between Kat and Yuri Gerneaux in which the former agrees to follow-up on the latter's previous offer to enlist in the Jellyfish Squadron. Afterwards, he will send Kat off on a training exercise, led by Yunica. Since the mission in which the costume is acquired needs to be triggered, it is impossible to miss.