In the deduction of the role of Marta in the fifth personality air force, she was first introduced about her origins, born into a family of officers, who was strictly demanded by his father from an early age and has always been highly expected. However, after being discovered by her father because she was dressed as a man and joined the army, his father imprisoned him at home in anger.
While she was imprisoned at home, he became acquainted with his fiancé, Henry. Henry, of course, was a soldier and a well-known pilot. The plot continues to advance, and later Marta and Henry agree to use the signal bomb as a signal for Henry's flight and landing, and during one landing, Marta's signal bomb fails, causing Henry to fail to land and suffer an air crash.
But when Marta's birthday letter was released, we were taken aback that Marta had lied, and that Henry's death was most likely a farce she had orchestrated; and what was even more frightening was that Marta's origins were probably false, and that she might have been just a spy deep behind enemy lines.
From Marta's birthday letter, we can see that the recipient of the letter was Baron De Ross, and the new payment was written with the well-known name, that is, an anonymous letter. Here we also describe the identity of the baron, in which barons and his wife Dros are fed up with the abandoned manor, and they hire Mad Eye as the architect who repairs their manor.
Judging by the content of the letter and the tone of the speech, this is a reply. Baron Delos must have been writing a letter inviting Marta to the "game", and in her mind Marta mentioned that she felt very annoyed in the finale of her last finished errand, that is, she needed to become another person with a new name and a new background.
From these two sentences, we can also understand Marta's identity, and there is a great probability that a person who does not have a fixed identity and can continue to take on tasks will be a spy. Even if she wasn't a spy, she couldn't see the sun. So, we see that the deductions about Marta are all false, and we don't know who she really is.
After understanding this, I remembered that Marta once came out in a fashion, and the skin description at that time was: I want to be a good actor.