Aren't You My Type summary:

"You're here to meet Joogeon-ah, right? …I'm Joogeon-ah."*Ding* Lately there are many messages from people who mistake Geon-ah for his friend Hyesung. Usually, he would think of it as a prank from Hyesung and try to ignore it... However, the messages were pouring out that day! A message from "Hyundal" came when his work stress was at its peak. Geon-ah suddenly replies to the message sent by Hyundal, who still thought he was Hyesung. The more they talk, the closer they get, and the first encounter between the two, which seemed to never come, is approaching... and so is the illusion.