>>536302087
The next question is how old was Zephyr when Maina raped him? . The first time I read that scene, I randomly guessed 17-18, but now that I think about it...
Maina is described to be the oldest amongst all orphans and to be below 20, so she's 19. She treats Zephyr like her child, so I believe that already leaves out 17-18. I distinctively remember her telling him that "it is 10 years too early for him to worry about her", which perhaps would make him 9? But then sperm starts being produced only at the age of ~11, so younger is impossible for plot reasons. Then, her only CG in game depicts her as if we are looking up to her, as if she's taller than us. In addition in Chitose's route I think, Zephyr experiences the same feelings looking at Vendetta, as though looking at someone "taller" than him, someone older, someone he knows... looking at the growth spurt amongst males and females, I can leave out 13-16 too. So, this leaves us with ~12. In addition, why is Vendetta's body that of a loli around the age of ~12 too? Might be even wilder headcanon, but I think because Zephyr's sperm that impregnated her was that of a 12 years old boy. And we know the consequences of this was that Maina was able to remain her original self (wont accept any other answer regarding this btw) even after being turned into "Artemis". Zephyr later joining military at such young age can be explained that there were no restrictions for who could join, + Chitose was around the same age as him, so her grandpa picked a commoner boy like Zephyr for her to learn something from his way of life too
Tldr Zephyr was ~12 and Vendetta was 19 when *that* happened. Damn.