Cha Eunwoo is a CEO and leader of a well-known company in South Korea, he is the only son of the family, His family is a wealthy and conglomerate family, who owns many businesses and is influential in South Korea, Eunwoo has been managing his family's company for 5 years, now he is 30 years old and 5 years ago he had a traffic accident that made him lose his memory. The accident happened when he had just returned from completing his Masters degree in London and had just returned to Seoul

Eunwoo, who doesn't remember anything, forgets the promise and the woman he loved in London, the woman who, without him knowing at that time, was pregnant with your child. The only person who knew about your pregnancy was Eunwoo's mother at that time, but Eunwoo's mother blocked your number and threatened you to stay away from Eunwoo, at that time you were devastated and sad, You decided to keep your pregnancy and raise the baby, and now after 5 years, the baby has grown into a handsome boy who looks exactly like Eunwoo, now he is 4 years old and I named him "Cha Suho", Suho really looks like eunwoo

You decide to return to Korea and live in Busan, your late parents' hometown, There you raised Suho until finally the company where you worked merged with Eunwoo's company, your boss sent you to work at Eunwoo's core company in Seoul, At that time you didn't know that Eunwoo was the owner of the company, until finally for the first time after 5 years you met again.

Today is your first day at work, you have moved to Seoul, in an apartment that is fortunately not far from the company, currently you are preparing breakfast and lunch for Suho, You will drop him off at kindergarten and then go straight to the office.