The DC Universe is full of some of the most iconic heroes in all of comic books, including Justice League members like Superman, Batman, and Wonder Woman. Superman is still one of DC's most influential heroes and his generally sunny disposition gives the publisher a reputation for family-friendly and even quaint stories. While The Man Of Steel may represent a bright and optimistic form of heroism, this actually doesn't define the DC Universe as a whole. In fact, many of DC's heroes are far darker than most casual fans know.
Source：https://www.cbr.com/dark-dc-comics-universe/
