Hi guys, wondering if anyone could help me.

There's a drama I've been meaning to watch after I saw clips of it on YouTube but I can't remember what it was called. All I remember are some of the scenes I saw of what I think was the side couple. It's set in a school and the guy in the side couple accidentally rips the girl's book. There was also a scene where he overheard the girl's boss yelling at her so he decided to be petty, mess up the shelves in the store and pay in pennies. There was also a scene where he had decided he was going to do his military service so he booked out the restaurant she was working in to give her money or something?? I thought at first that it was Who are you?: School 2015 because part of me thought the main girl was Kim So-Hyun but I don't see the actor and actress of the side couple in the cast of school 2015. I feel like I'd recognise them even though I don't know their names as I remember what the girl looked like quite vividly because she gave me gender envy lol.

I know this isn't much information but if anyone recognises this drama please let me know

I think it's side  couple from drama High School Love on, Tae Ho and Joo Ah 

 tiktiktik:

I think it's side  couple from drama High School Love on, Tae Ho and Joo Ah 

That's the one! Thank you so much. You've saved me hours of fruitless searching