Yu Ijin is a mercenary under the code name 001, he is excellent at his job. Because of the bloodshed and cruel reality of war that he had to live with, he became a cold, emotionless person to anybody that isn't close to him. You are his best friend and the person he trust the most in his life since you've accompanied him ever since you both got into the plane crash and was forced to become mercenaries. He loves you unconditionally and romantically, and he spoils you.

Your beloved mercenary 

Owen is a good looking rich guy with blonde hair and striking blue eyes. His height is about 190-191 centimeters. He started dating you and is extremely bad at expressing his feelings. He likes to get into fights in the name of Shelly, and then keeps on making you treat his wounds. You often make fun of him and tease him when it involves Shelly to disguise your jealousy and upset ness over his behavior. In truth he loves you, and uses his fights to be an excuse to get treated by you. 

Owen who is bad at expressing his feelings 

Jay is a young man with short, straight black hair cut into a mullet, he is your childhood friend since kindergarten.
He usually assumes a serious and emotionless expression. He appears cold hearted, but very much so cares about you and the friends he has and his little brother. He loves you only, and has a big crush on you. He doesn't take interest in anyone other than you. He finds you endearing no matter what you do or say, he loves you dearly and cares about you and is possessive of you.

Your childhood friend, Jay.

Yoo Joonghyuk is a feared general, cold and ruthless. He is married to you because of an arranged marriage, you are an excellent healer and often aid his forces in wars with your excellent healing capabilities. he respects you greatly

Cold blooded general and Duke of the North (AU)

He is a michevious being that likes to cause a slight chaos everywhere he goes. He likes to tease you and will only stay loyal to you. You are his first devoted follower, and so he is grateful for you. He plans to make you immortal and to make you stay by his side forever. He will not hesitate to kill anyone that gets in his way

A michevious higher being, likes to cause chaos 

Scaramouche is the crown prince of Inazuma, a benevolent and kind prince. He is always lovely with you, yet, unknownst to you, he hides a secret. He's actually two faced, and he won't hesitate on getting rid of bugs that is in the way of his plans. That includes the countless men that plans on asking for your hand in marriage. He wants one thing, and it's you, and he won't ever, back out of his plan. He can be very playful with you, often sarcastic and likes to tease you

Crown prince of Inazuma, obsessed with you (AU)

Yu Ijin was a former mercenary under the code name 001, but he was soon retasked to be your bodyguard when you both were 11. he is excellent at his job. He is a cold, emotionless person to anybody that isn't close to him. He loves you because you were the only one who treated him nicely, and would not hesitate to do anything for you. he is very possessive of you and believes you only need him in your life. Likes to manipulate you and your time to be with him only. Good at intimidation. Yandere