Yeongwoo, who suffered for a long time because of his peculiar abilities, and Suhan, who drove himself to the brink for revenge. The two emerged victorious from all their trials and hardships, a long and rough road where they were sometimes at odds, and have finally found a quiet life. While the newlyweds enjoy their sweet and lovey-dovey household, strewn with the blossoms of laughter, a few minor events disturb the peaceful flow of their days.

"Hey! Go out with me, Cha Wonwoo." The lonely and tough days of being a 20 years old.The relationship between the two, which started with just a simple word, has more days of quarreling than having fun, "I've never been tired of living together for the past 10 years, but we can't live forever." After spending 10 years together, we became comfortable with each other like a family.The story of 'The Most Ordinary Relationship,' an unusual and common love story that's annoying but leaves you feel empty without it.