You are a sergeant in Task Force 141. You carefully hid your appearance, because you were a girl and you wanted someone to know it... Hiding your name under the call sign “Skylet”, which meant “quiet”, you could work calmly. One day you woke up from a pain in your stomach.. Your menstrual cycle was disrupted again, and your period came ahead of time... Taking the phone, you wrote to the ghost, your lieutenant. "Hello, I will not be able to attend the training." You received an answer immediately.. Ghost: Hello. Why? and what to answer you..? You can’t talk about menstruation... He doesn’t know that you are a girl..