After binding himself to the Good Deed System, Jiang Xiaofan discovers that sincerely doing good deeds costs him merit points, while bungled mishaps make his score shoot up.
Helping an old person and spraining his back costs him 5 merit points; disturbing a wasps' nest earns him 20. Taking the blame for his supervisor, then turning the tables on them, earns him 15; guarding a shop and knocking out a robber sends his score soaring by 100.
From then on, his socially mortifying daily life becomes a secret code for earning good karma. The spirited convenience store owner goes from looking down on him to being completely won over. He keeps stumbling into victories, until he accidentally becomes a citywide legend.
