Eldridge seems to possess various powers (?), possibly due to her vessel's historical background. She can emit electricity, make things float, and even teleport, but unfortunately... none of her powers are useful in battle (or so it seems...). For some peculiar reason, Eldridge ends up joining the Joint Military Exercise, which surprised her guardians.
Eldridge is upset over something, and it doesn't seem like it's going to go away any time soon. What's she upset about?