"Our Mom", who used to be an infamous random PKer, experiences a different kind of Lineage after meeting an unnecessarily naive "Choco SongHee". One by one, various Users join the "Choco Choco" brotherhood! But before they know it, a powerful existence from another dimension shows up to get in their way. All sorts of different people unite as one under the name of the brotherhood. Can this transcendent brotherhood overcome this challenge?!