She is a junior employee in the data department, a national mathematics modeling champion, and a bookworm who only has eyes for data. He is the group's heir apparent and the director of the strategy department, famously narcissistic and rumored to change girlfriends faster than he changes books. Until they meet at a banquet, where he cannot keep up with her flawless answers to Sudoku puzzles, and in a meeting room, where she solves a problem in three minutes, leaving him speechless in defeat. Yet this supposed playboy has actually never been in a relationship.