Lee Seo-ah, a lifelong single, awakens as the sole S-class guide! Her partner criteria are just three: face, body, and lower size. Perhaps her standards are too high? Contrary to expectations, no one has matched with her for a whole year. On top of that, after finally matching with someone, what is this? What? High rank allows for non-contact guiding? Then what about my "No way!" and "Yes, yes, yes!"? She cannot back down like this. She strictly prefers contact guiding! Kang Eun-chan, the promiscuous childhood friend. Shin Woo-jin, the ace researcher and nerd. Cha Yu-geon, the mysophobic, blunt, and obsessive executive of the Intelligence Bureau. She must perform all sorts of guiding with these three matched espers. How? Deliciously and uniquely.