The manga knows it’s a degenerate manga and doesn’t hesitate to call itself out, but regardless it pushes on because a true degenerate after acknowledging it’s own flaws would double down and keep pushing forwards, and that’s exactly what this manga does. 11/10, incredible humor.
The characters are incredibly emotionally mature and well thought out. At one point they do character bios on blackboards, and 1/2 the information is plot relevant, 1/2 is just natural explorations of the character to give them more depth.
If it feels like the characters are too emotionally...