Ofc! After the confrontation with shyloh (the nameless pixie), helios asks you what do you want to do now you need to choose "I want to side with the heroes" and at the end instead of shyloh saving you, you get 2 choices, pick "trust the pixies" then you'll get the second ending which is NSFW however if we're talking abt rosario actual ending it is in the full game which is not out yet! I hope this helped!