Holding On(Glee/Shadowhunters Fanfic)

We all know the story of Kurt Hummel.The boy who wanted nothing to be on a Broadway.Who was a student a McKinley High school.What happens when he finds out his father is keeping a big secret from him and it's about his mother and her past.What happens if leaves McKinley and moves to Brooklyn and meets Clary Fray and Simon Lewis.