Zero is a certain surface god. For some reasons, he goes to various derivative worlds to collect energy. After ending the novel derivative world and entering the anime world, he is accompanied by a black cat with one gold and one blue eyes called No. 1. Destroy a certain plot, but make sure that the ending of the world line does not change much. For example, the destruction of the world is not allowed to occur, except of course the setting of the plot itself.
The protagonist looks indifferent on the surface, but in fact he is relatively simple in his heart, and his feelings are slightly solid. During the time travel process, he completes his emotional solidity.
Number one is a master.