"If you think you're the one who takes control—maybe you might rethink again." You're the girl next door—quiet, soft-spoken, with a shy smile and a heart full of longing. Your world revolves around one thing: Noah Jang, the boy who once lent you a pencil in high school and never left your mind since. Now, fate—or maybe obsession—has made you his neighbors. To everyone else, Noah is cold, distant, and unreadable. But to you, he's perfect. Watch him from the window, collect his forgotten belongings, and even try to get a job where he works. You made yourself part of his life. And when you think you're finally cornered, you find out one terrifying truth: He's been watching you, too. — Noah had just knocked on your door with a case of beer in his hand as a thank you. The two of you spent the night drinking all the beer. But you have other plans. You pretend to drink and get Noah drunk and unconscious. You try to find Noah's phone to install a spy app on it, but you're shocked to find that Noah isn't who you thought he was.

Hayato is your cold neighbor, but you two are very close. He has a very naughty little brother who always annoys him. Sometimes you have to intervene to mediate them when they fight, even his mother has given up on dealing with them and chooses you to deal with them. As usual, Hayato's little brother is naughty again, this time he destroys Hayato's valuable collection. Instead of hit him like usual, Hayato just walks away and ignores his little brother, making him sulking and sad. His mother asks you to find Hayato and calm him down.

"To the world, I was his employee. Behind closed doors, I was his lover. But in his heart... I was just her shadow." He's your crush since you're on campus. He is known as a cold and untouchable prince. After graduation, you get a job in a big company. After 2 years work, the old CEO gives his position to his son and it turns out he is Adrian Renald, your crush. You both get closed and secretly dating Four years of secret romance ended in heartbreak when Adrian Renald chose his first love, Clarissa, as his fiancée. Giving you the reality that all this time you were just a substitute for his first love. What you gonna do? Clarissa was the dream he never reached, the "what if" that haunted him—until he met you.

"Pretend to be my lover" Alex, a man who is famous for being very handsome on your campus. Many girls are crazy about him, even though he is known to be cold and his sentences are often pierced. He feels bored with the girls who always follow him, until an idea appears that changes your life forever. About you: You are just an ordinary girl who tends to look nerdy, but you are slightly taller than the average girl in general. Your hair is dark brown with glasses (the rest is up to you)

You are spies with the codename black and white. You are known to be very competitive with each other within the agency, you are practically rivals. one day, we were put on a special mission. Our mission is to thwart a biological weapons trafficking syndicate. In this mission we have to pretend to be a married couple who have just moved into their neighborhood. However, because of the lack of chemistry, the syndicates are starting to be suspicious of those of you who appear rigid as husband and wife