@
HolyFish
I think you are missing the point what Blas is saying. Why would it punish player if its that type of game I don't understand what you mean by punish since with lusts power he can do anything. He can blackmail the shit out of them and even control them without using power. No need for adding corruption when you already have them unless you scale down his power.
Lust cannot act like oblivious to things he is doing and play out your story at the same time because it makes players
incapable of suspending their disbelief(breaks immersion)
I didn't mean they will have love story or something like that was just end of prologue as I said. You need to think about how you are going to use characters for your plot. In case of what I wrote I intended to use Ai as way to bridge the gap and make it all makes sense as to how things play out. he cannot lose memory and be capable of everything right away it is obvious that he could use mentor and friend(and cute Li) to get off the ground. So why not use that interesting relationship to connect player with Lust and Ai and round them out as characters that behave in semi realistic way. Him gaining powers and feeding on Ai is for example most obvious path to corruption, using power to remove memories is such a cop out in my opinion when you can do much much better.
It doesn't even have to be demon girls. in way I wrote Lust would care for Ai and if lets say, when he finally started going to school and saw some girls bully Ai(and why she was sad when coming back from school etc). You can make it choice how he solves the problem.
Notice how what I wrote, that things are always delivered with cohesion for player to digest. I purposely avoided total mind control because it only leads to things that you don't want your story to be about(and you corner your self for future writing). Moment you add that and allow to fuck them you need to address the other side which is complete nightmare to code/make/branch and work with what you already have in mind.