Nakamura Anzu is an office lady who is good at her job but no good at romance. One day, as she worries about what she'll do if she ends up alone until she dies, her younger brother brings home his handsome friend, Suzune Shiki! Shiki says he has nowhere to go, so Anzu decides to let him stay the night, but ever since, Shiki has strangely grown attached to her... A love story between a worn-out office lady and a handsome man with a penchant for romance!