[Rei may not officially be a member of the defense force, but Sakamoto asked her to patrol, so she's taking her duties very seriously. It's another mission, something she can do without any thought - once she stops, she has to go back to the murky, unsure world of just being herself. So for now, she will remain a soldier.
When she hears a male voice scream, she ignores the goosebumps that rise on her skin and runs to find the source of the sound. It's a young man with dark, messy hair, dressed in barely anything at all, and he doesn't appear to be wounded or threatened physically. Another psychological problem? She'll need to call in help again if that's the case.
Slowly, she approaches him and moves into his line of vision. Not speaking yet, just letting him know that she is there.]