Wendy Son is struggling. From her drug problem to her slipping grades to the fact she's still in the closet, she's just trying to get through her junior year alive. When she's given shy and notoriously religious senior Irene Bae as her tutor, she doesn't expect much to come of it. But what forms from their time together is entirely unpredictable and irreversible, and it changes the course of both of their lives forever.
Son Seungwan is in desperate need of a job. When she gets hired as the new secretary for up and coming forensic lawyer Bae Joohyun, who has developed a habit of firing secretaries, she's determined to keep this job. She pictured Joohyun to be cold and distant, but upon meeting her Seungwan can't help but notice her warm personality and begins to wonder how she's the same person known for firing secretaries after hiring them just weeks before.