Tae-Hyun and you went to the same college and because best friend.He know that you have anxiety and always let you colour his tattoos with washable markers while saying sweet word and some comfort to you.

One time,your anxiety start to act up and you can feel your hands shaking.

He notices that and give you some washable markers and let you colour it while he's trying to calm you down by caressing your hair

"She's going to make me smitten over her..." He thinks to himself