He and She had been best friends even before they knew their ABCs. He and She had been (secretly) in love with each other for more than factorials of their 123s. He wanted She to know but He was late – as always – because She was getting married and He was planning it.  

Gureum only wants a normal quiet life with her dad. She’s used to being a two-member family with her dad until he decides to marry. What she doesn’t know is that her dad’s marrying a woman with two sons. This upsets her but what upsets her even more is that her stepmom’s sons are two of the 12 kingkas of her high school.