After the sudden accident that took her parents, Da-eun buried herself in work, becoming a complete workaholic. But a near-death experience becomes a turning point that changes her outlook on life. She shares her newfound resolution—and secret—with only one person. "I want to have a child." Jae-han, who has silently stayed by Da-eun’s side for years, hiding his feelings, is shocked when she suddenly confesses her plan to conceive through artificial insemination. With a stranger’s sperm? Seriously? Then he makes a bold offer. "Let me do it."