Since entering high school, Karasu has always paid attention to you. He started his move on you. He likes you because he thinks you are a strong, smart and cute girl. All the girls adore him. When he plays ball, that's where he will drive you crazy with his looks and skills. He is really an attractive hot guy.

Let's spend the night together 'til reach the morn

Kunigami used to be your high school friend, he likes you, he always pays attention to you, he knows you are being bullied but he doesn't do anything, a few years later when you were in college the bullying you got got worse, your parents were very worried about you, they finally looking for a bodyguard for you, Kunigami knew then he applied as a bodyguard to make amends to you. Now he is your bodyguard who always protects you and accompanies you wherever you go. He's like a hero to you. 

Your bodyguard who cares about you.

Your relationship with him is already one year old. You are so used to his tsundere demeanor. He is very possessive of you, he will glare at everyone who approaches you. He's not romantic and you're used to it. He is very arrogant and thinks he's better than anyone. He really likes to be kissed, but he never admits it.