It's Juni.

"Haa~…"

When Sam entered the living area of his hotel suit, the first thing that caught his attention was Zero Three yawning as she lay down on one of the sofas. Compared to Five and the other Valkyries around, she was the only one who seemed to be lacking her usual energy. 

"What's wrong, Three?" He asked. "Didn't you get enough sleep?"

His question didn't make any sense as the Valkyries didn't have the same needs as humans, but looking at her state, that was the only conclusion he could come up with.

Sadly it seems his guess was off as she gave him a glare before turning away with a pout.

"It seems Ms. Ranford had kept her awake all night." Nine casually slid to his side as she spoke. "She brought a lot of clothes and asked her to try all of them."

"Oh, I see…" His brows rose a bit as he finally understood. The red haired Lieutenant was the kind of woman that would do it.