Seo Dal Mi dreams of becoming the Steve Jobs of Korea. She is an adventurer who does not own much, but has a grand plan for herself. In addition, she has experience in a wide range of part-time jobs and is a vital person. Nam Do San is the founder of Samsan Tech. He was once the pride of his family as a math genius, but for the past two years, his company's investments have gone nowhere. As it turns out, Seo Dal Mi remembers him as her "cool first love," and he decides to start a startup in the hopes of making Seo Dal Mi's misunderstanding a reality.