Asa No Hikari's manga / #huge age gap(60)

Although it is an absolutely fascinating story, this leaves a somewhat bitter taste in my mouth. An adult 20 years older hiring a teenage sex worker is icky, if not downright wrong, it's the borderline stalking of a child model disguised as admiration that is more conflicting. If you don't mind exploring the darker sides of humanity, you should give this a try.

Character development. Character development in spades.