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Part 1 (TW: non-con): In a certain world somewhere, the strongest hero is on a journey alone to defeat the demon lord. When he is taking a rest in the sauna of a certain village, a man begins to sexually tease him. Normally, the hero would use his overwhelming powers to drive off the man, but... It would seem this hero has one critical weakness... and that is his ANUS!

Part 2: In a certain world somewhere, the strongest hero was on a journey alone to defeat the demon lord. That was until he was assailed in the sauna by another man and became addicted to anal sex! Now he frequents dark and debaucherous cruising spots on the side of his demon slaying mission.

Part 3 (TW: dub-con): Raul is a hero who fights against demons. He's very strong, but his only weakness is the sensitivity of his anus. One day, he was working hard on his demon slaying mission as usual, when an orc's huge swinging dick caught his eye, making him let his guard down... Sex with a defeated hero!!

Part 4: The hero named Raul got fucked by an orc and admitted defeat. Then, he was brought to the orc village. From their thick cum, he started laying orc eggs. Egg-laying / Orcs (Tops) / Hero (Bottom). He gets creampied by massive orc dicks and lays their eggs!!

Part 5 (TW: incest, hero kills his orc offspring): The hero Raul was living the life in an orc village getting fucked and giving birth to orcs. And with each passing day, and every egg laid, there would be more and more dick, just for him. But, one day, other human males are caught and brought to the village as a seed beds. Unable to tolerate there being less dick just for him, the hero slays ALL the orcs...and decides to head back to human civilization.

Part 6: In a world where demons and monsters are rampant, the hero named Raul is famous even among the knights of a certain country. The lastest recruit of this knight order really admires the hero. That's why one of his senpais offers to introduce him to his idol. That's how the rookie was brought to a room where men were having sex at some gay cruising spot. He then finds out that the man who was being fucked by all those men, is none other than Raul, the hero himself. Shocked, he runs away, but when he finally gets back to his room, he jerks off to the Raul he saw that night. The next day, Raul participates in a demon-slaying expedition with the knights. Seeing Raul again makes the rookie remember about the hero's recent perverted acts. But then it gets him hard, and Raul seizes that opportunity to seduce him by blowing him.

Part 7: The recruit from three years ago who once admired the hero has now become a senior knight. Just like his own senior once did with him, he takes his new recruit to a sex room, where the hero is currently having sex with various men. Both knights then fuck the hero, and the one who once admired him also fucks his throat, being now used to doing things. Once they're done with the oral sex, the hero goes on to find himself another man. And now that they're alone, our knights also start exploring each other's bodies.

Part 8: Incubi twins want to try making him their bitch after learning about the hero's high libido. One night, they approach him while he is drinking, and put their plan in motion. The hero then agrees to go home with them and they ended up having sex. While the hero is really impressed by the incubi's big dicks, the twins also get their rocks off on face-fucking him and entering his tight ass. After that, the three of them agree they'll be hooking up together again. The incubi are still determined to make the hero surrender to them, but after that 3-day-long threesome with him, they're the ones who actually surrendered to him.

Part 9: The hero learns from a nobleman that another high ranking man will soon be hosting a secret party. Curious about it, the hero agrees to join the party as the man's dog. After making an entrance that baffled everyone, the hero starts messing around with the other dogs in the assembly. As the night advances, the dogs are given a drug injected in their tongues that makes them intoxicated with lust. The hero also gets an injection and goes into heat. As all the men now having an orgy, the prince enters the room. The prince also wanted to try having sex with the hero, and since the hero accepts his advances, they end up having loud sex in a room with just the two of them.

Part 10: The hero spends his days slaying demons, as ordered by the king. But the hero is also a slut, so sometimes, he fucks incubi too. Meanwhile, at his castle, the demon king jerks off to the footage of the hero's sex sessions with the demons. Determined to also try having sex with him, the demon king heads for a human city to hit on the hero, and the two of them end up having sex together. After that, the demon king leaves in the middle of the night to go back to his castle and his duties, although he can't stop thinking about how sexy the hero was that night. One day, the hero shows up at the demon king's castle. In the middle of this inevitable fight, the two of them lock eyes and start kissing. The hero couldn't forget about the demon king either. They then engage in sex one more time, leaving the fate of the world to hang on a little longer.