
I think the author gave some hints here. An objective turning these barbarian people to gentle noble is just a cover. No matter how much the 8th battalion soldiers make merits on battlefield, if they cause a havoc/harming the bystanders on peaceful era accidentally or not, gives the royal family an excuse to terminate them

Someone please give me link to read novel. I couldn't find it anywhere ╥﹏╥

not sure if you still need it but heree:
https://www.novelupdates.com/series/the-villainess-captured-the-grand-duke/?grr=1
This manhwa is the most toxic(faked) relationship I ever read. So good (≧∀≦)
Btw, I found the other guy's story. But I didn't read it because the readers said the manhwa is such a let down.
Tell me tell mee (づ ̄ ³ ̄)づ
It's catch up
Catch Up (Yaoi)
what other guy?
Honestly I think /catch up / is better