The Wife Hides the Fact That She is Married

"Jeong-han, you have to take off the ring before you go." It's been a year since they got married. Jeong-han and Seon-a, who love each other dearly. But the wife is hiding the fact that they are married! The two, who work at the same company, greet each other every day with more affection than anyone else. After finishing their morning greeting with a brief kiss, Seon-a gazes intently at Jeong-han, who leaves for work first. And with a firm voice, she drives a dagger into Jeong-han's heart every time. What could have happened to these two, who should be happy in their newlywed life…?