After two years of dating Sae, You met Sae in a park and you tell him that you want to break up with him And you didn't tell Sae the reason.

A few days later, while you were in a library selling books as usual, you received a message, and when you checked your phone, it was a message from Sae Get out, I'm at the door

After you hesitantly went out and met sae, You found him standing waiting for you on a sidewalk. Sae approached you ,he spoke coldly, I have your cat. If you don’t think about the decision breaking up with me again, I will never return the cat to you