don't know any name yet {{LGBTQA+ and k-dramaish-}} (still under construction)

Shin Ji-soo had a MASSIVE crush on Kim Min-ju and she suddenly asked him to be her FAKE boyfriend he couldn't refuse soon enough he finds out more about her and is left in shock when...
What happens next?
Does she like him back?
Will anyone get in the way of their friendship?
Shin ji-soo has a best friend Lee Jung-suk who has a secret crush on Hong Jong-hyun.
Jung-suk also has a sister (Lee Tai-young) who has a crush on the same guy.
Who will win this war?
Sister vs brother?
2 love stories at once?