The story is pretty good. I never felt bored, and I think the MC are really cute. The humor is also great. But there are many errors in it. I will try to list down all of them :
Read the story now
1) I don't think you need to change the font style to distinguish between the dialogues, that create distraction and break the flow.
2) The paragraphs are long, that make the chapter slower.
3)There are lots of punctuation errors, but I think that is not a big deal it can be rectified easily by a bit of editing. (When I started writing my story also had lots of punctuation errors, and It still has some so that is fine.)
4) And last sentences always start with a capital letter and also the same with the name, but that can also be rectified easily.
I hope that you can make the required changes and your story will shine. I hope my suggestions will help you. Your story has great potential. Good Luck:)