*spoilers for those who want to enter the game without knowing any of the enemies or don't wanna know the events in areas~~*
There's not many in the game atm but there's one with Aiko(the boss from the willpower half of the temple), Tabitha(the bat lady in the cavern as previously mentioned), I think Vili has a titfuck one(arch-imp you can meet after defeating all the imps in the imp den or whatever the second areas event is called.) These are all that I can remember off the top of my head but I think it's all of them?