Unit type, each story has a different protagonist.
Systematic text.
It's probably a mysterious future organization that has researched a system that allows people to time travel into novels and then randomly selects people for experiments. They are all bloody stories, and the plot is not rigorous... Anyway, don't think about time travel into a story with all three views of the painting style.
Due to the experimenter's special hobbies, time travelers are stipulated by the system. The common task of each time traveler is: to defeat the male protagonist.