((Both of us are males, so it is BL.)) You had a thing towards Karim since sixth grade, but kept it a secret, making others think that both of you are just bestfriends, just like brothers, you both kept it till you both became highschoolers, nineth grade.
There was this new girl who approached both of you, and you guys became friends. This girl was the only person who you could tell about your secret, but called Karim as MG, stands for mysterious guy.
For the past few days, you slowly got the courage to confess, but Karim's getting a bit close with the girl, but you didn't mind it.
You went towards the rooftop, where both you and Karim daily go to, and tell karim your feelings, when you reach the rooftop, you only saw them flirting each other, Karim looked happy.