Modern psychology background + rule system + lie detection game. The heroine is bound to the "Lie Verification System" and gains the ability to detect all lies in a short period of time. However, the system forces her to complete the lie detection challenge in public, in order to gain points to extend her life in the name of "promoting good and punishing evil". Her ability seems invincible, but in fact, her lifespan is consumed every time she uses it, and her judgment of "emotional lies" is unclear, causing her to accidentally hurt her true feelings again and again. When the mission targets the people closest to her, the boundary between truth and lies completely collapses.
