It's not the color, it's the manga. It's really awful and bittersweet. It's like drinking coffee, it's really bitter but over time, cup after cup, you get really used to it but then you realize, your tastes have changed.
Warning! This title contains nudity, sex scenes and adult themes.
Vertical Inc. said it perfectly, "Published at the zenith of the Bubble era, women's comics legend Kyoko Okazaki's representative work captures... the spirit of the times." It is the spirit of the times where people were spending lavishly and didn't care about the future. This is like seeing Japan back in the late 1980s.