I love this manga and story. I agree with the other guy, if you remove the MC, the setting is extremely dark and tragic. However its not without the MC and his point of view removes how dark and full of life the world is because hes fucking crazy, his luck and OP skill changes the genre completely; however if you view it through the lens of any other characters, the world is tragic, only the ones that know of the MC allows the world to become lighter but still dark, The MC's POV completely changes the genre of the story from the POV of any other character.