The law of Fiction: Harem in the fiction world

When Yohan woke up in the morning, he had a beauty in his lap and in his bedroom. It was like a dream come true for him until reality struck him. It was then he remembered that he had been cursed by a goddess in the game he had been playing before sleeping. In his sleep-deprived state, he had offended the goddess and as a result, he had been cursed to become a 'no-good' man who could only provide 'support' to the 'heroines' of this world. Thinking nothing of that curse beforehand, Yohan went to sleep, only to find his world-changing from that day onwards. His normal and mundane life was no longer going to be as such as more and more fantasy creatures began to show up. And a female voice awoke him with a notification *Ding dong ding. Congrats on unlocking the fiction system. From here on, the user will experience the full scope of the logic of the fiction world. May the user use his PP and conquer everyone.* And it was then Yohan realized - he was no longer in a world governed by science but one that followed the laws of magic. And the only way to survive was to utilize these so-called 'laws of fiction' to his advantage. And the best and worst part of it all? The more he let his desire go, the stronger he became.