Little Mistake//Katnic

Katherine finally raises to her singing career and Dominic is still acting but once upon a time a ago after finishing Shadowhunter's Dominic and Katherine admitted their love for each other, that's what Katherine thought but Dominic had just broken up with Sarah and Katherine was just a a short term fling. It's been three years but now they get a call for season 4 of Shadowhunter's and they have to see each other once again, but this time both of their lives has changed. What will happen when the two past love birds see each other once again!!!