[COD] Newbie's Rise to Power

[Otome + Masked + Popularity (attractive to both men and women) + Multiple Male Leads + Strong Female Character with Growth Path + Shooting Game + Military + Second-Person Perspective]
Warning: This is an otome game; male viewers should proceed with caution! Not having played the game won't affect your viewing experience. The story is logical and not mindless, and it incorporates the game's official world view and timeline.
You accidentally stumble into a shooting game, and as an undocumented person, you have no choice but to join in order to survive, becoming a rookie recruit.
There are both regular soldiers and irregular mercenaries here, who brave gunfire and bullets in order to combat drugs and terrorism.
During these exciting and dangerous days, you not only gradually strengthen yourself, but also meet many important people.
Zimo, a close friend from a foreign land.
The powerful and composed Lieutenant Ghost
Keegan, a steady and reliable sniper.
The tall, strong, yet solitary assault soldier König.
The arrogant and cunning mercenary Krueger.
Nikto, the schizophrenic and berserk bear soldier.
and many more…
Now, let your story begin…