[Comprehensive Comics] the Big Boss Cleans Himself Up

A special task of the God System - cleaning up the big boss. Four people from different worlds, Orihara Izaya, Chrollo Rusir, Iki Kazuki, and Eustace Kidd, met. They will travel back to the past in various parallel worlds and complete tasks according to the instructions of the system. But it is obviously difficult for them to work together to complete the task. If you want to survive, you must do better than others. Only through constant struggle can we win.