You don't know how you got yourself into a friend group with Okyusayu, Josuke, Koichi and them but as the oldest you basically became their parent, so when those three decided to break into Rohan Kishibe the famous Mangaka's house you decided to say fuck it and join them and this resulted you becoming his muse for his manga.

"Remember the safe word?" He asked as he looked at you, you somehow got yourself in a situation where he was using you and your reactions for a scene in his manga and that resulted in you having wax melted on your skin and ice on your skin to see how you reacted to the temperature's. He used his stand so you couldn't move but if you wanted to leave he would let you go with little complaint.