Here's the thing. For depth of characters, events are needed. New characters appear in events (vendors, travelers, guards, enemies). I draw sprites for them (I finish drawing after the AI), it takes a huge amount of time. Basically, these are episodic characters that appear once for a hot scene, that's all. Of course, these characters can be abandoned, but the goal of my game is more deep throats, not a deep plot.
P.S. I don't watch porn for the plot, but don't worry, there is some plot here.