One of the earliest annoyances I had was when the MC had to find a reason to get stronger, so her spiritual state would return to normal. And the MC said she wanted to have a baby like 10 times in one chapter, or was that 10 times in a few paragraphs even. Anyways, I don't mind setting having a kid as a goal, but there was no foreshadowing for it to be such a huge goal, not to mention how casually the way she would get a child was written, and what the kid should be like. She was bed-ridden for 20 something years before consuming reading materials from the internet or books, which is about all we know of her life on Earth, so just because "mentally" she's around 30 years old, shouldn't mean her most important goal is having a kid. Or maybe that's just something I cannot understand as a guy.

My most recent, and bigger annoyance however is the old Japanese vs Chinese BS that's in several novels that completely destroys the novel.

There's this one chapter where a battle is likened to Japanese invasion of Kwantung troops or smth, where it explained how some 20k soldiers from the Japanese managed to take over a region where the populace was several times their amount etc to explain something that just happened. After which, the MC said, and I quote: The current Ling Lan was only the Ling Lan of this life; the previous world did not concern her anymore.
I was honestly happy how the author chose to write a novel without including some personal-ish hate-bias.

A few chapters later though, or was it even the next one, and I quote: Perhaps the history of the invasion of China, so hated by the Chinese people, in her past world had left a deeply embedded wound within the hearts of all the impassioned descendants of China.

Like god damn you literally just said you wouldn't mind the previous world, and I'm not even going to comment on how a girl who lived basically her whole life in pain on a hospital bed could hold such intense patriotism. Blows my mind.

And now, at the moment I decided to write down these points, I found out that the big bad Twilight Empire, who were the cause of the MC's father's death, use several japanese words such as "Yoshi" or "Baka" for some weird reason that I cannot comprehend. Unless that was the translators fault, reading a fleet commander say "Baka" several times when something bad happens, is a joke. It's like the whole purpose is to degrade them. Oh, and btw, all the Empire mecha pilots have Japanese names. Yeah. So there's still some dumb Japanese vs Chinese bs in here. God I hope it doesn't show too much, because otherwise I'm fairly enjoying the novel.

We are over a 1000 chapters in thus far, and there is no sign of our MC Ling Lan stopping the use of hormone suppressors to become a woman. This is written right after a chapter where her father Ling Xiao asks Ling Lan whether she really wants to quit the military or quit because of her promise to her mother.
After the tirade about her thoughts of wanting to stay as long as required until her friends can handle themselves (which is when I thought that she means never), Ling Xiao asks her what she wants, not what she wants to do for others. And she answers that she wants to stay in the military to be a soldier piloting mecha, moving around the galaxy and increasing her nation's influence. That same nation that tried to take her dead father's benefits from her because she was born a girl, that killed her father for 16 years, that was going to abandon her on planet Haijiao, and the same one that keeps being a danger to her now alive dad and her. Yeah, great nation there. Seems awfully convenient propaganda.
(... she wants to stay in the military...) Which for some reason obviously means she has to stay male in others minds. I mean, I thought the whole purpose was that she faked being male so she could get her dead father's benefits. Her father isn't dead anymore, and their father/son relationship is already out there for the public. There's no real reason to force it besides how she would explain it to her friends.
But anyways, Ling Lan asks what Ling Xiao would say to her mother, and he answers that "Women have no say over a man's decision..." after which he realizes he said it to her daughter. After that I thought something meaningful would happen but nope, it was turned into a joke and glossed over by Ling Xiao saying that Ling Lan shouldn't let her mother know of what he just said.

He is also extremely good-looking! Well.. when he removes the mask he wears..

currently become her most trusted right hand man in her own army. He had also noticed his grown feelings towards her and actively pursue her even if he hasn't know of her real gender yet!