>>536192745
Because that's a character-driven premise and as I just explained, that doesn't seem to be how they view things outside of a couple examples, which tend to be more character-focused vignettes than full "routes". (V'ehxness, Eva, Goodbye Eito and Multiple Eitos fall into this category).

For your concept to work under their framework, having sex with Kako needs to be an organic component of whatever plot they're going for. Not an end unto itself.