Hroda was dropped from the sky and landed head first onto the ground. Ant laughed hysterically at him and annoyed Hroda. He later told Hroda that his targets were a little boy with a flame birthmark on his head, a little girl with a stick in her mouth and Micheal Jackson. Hroda somehow understood that reference and went with the flow.
Ant left him and Hroda set out on an adventure. This world was even easier because it supported demon life, increasing his abilities by a little bit but he didn't really need it. He walked around the little town he was placed in and asked the residents about Tanjiro and Nezuko. He then left the town since no one really wanted to speak to this oddly dressed foreigner who could speak their language. He headed up a mountain to get a better view of the land and when he was up there, he saw a little hut with a man training infront of it.
He decided to walk towards the hut and he found a man training with a weird mask, he introduced himself as Hroda, a demon hybrid who was looking for a boy with a flame mark and a girl with a stick in her mouth. This old man turned out to be Sakonji Urokodaki, the man who trained Tanjiro. Sakonji immediately tried to attack Hroda but the sword broke on impact with Hroda's neck. Sakonji was baffled and thought it was his end but he was glad to be killed by such a powerful demon.
Hroda then took the broken sword and borrowed some power from the Dark God to repair the sword and in addition, he infused it with a bit if dark energy. Sakonji didn't know what to do because he had never met a demon which didn't want to attack humans, and then he remembered Nezuko. He thought Hroda was like Nezuko and didn't need to feed on humans for survival. He then told Hroda that he didn't know where he was right now but he should check the Tsuzumi Mansion which was around another mountain. Hroda took his advice and walked his way to the Tsuzumi Mansion.
On the other side of things, the demons sensed the godly presence of Hroda. To the demons in that world, Hroda was the equivalent of a God in base form and if he tried to power up in any way, he could break the Demon Slayer Universe. And since he knew that, he watched his emotions very carefully.
He found the Tsuzumi Mansion and entered it, he wasn't really scared of it and also didn't know that demons existed in this world so when he came into contact with the Drum Demon of the Mansion, he was relieved. The demon of the Mansion was terrified at Hroda's power when he walked in and after meeting him, he just couldn't bear that much dark energy, so he threw everyone out of the Mansion due to an overbearing amount of dark energy.
Because of this, Hroda finally got a chance to meet Tanjiro, Nezuko, Inosuke and Zenitsu. Tanjiro and Inosuke noticed that he wasn't a normal demon so they stood a fair distance away from him but Nezuko felt otherwise. She got out of her box and hugged Hroda. Hroda blushed but he didn't really think of it that much. Hroda didn't realize but his opponents were right infront of him. He didn't really want to harm anyone there because they weren't really that much of a problem and they didn't have such a cocky attitude like the previous universe's.
He then went forward to Tanjiro and touched him at a pressure point. Tanjiro went unconscious. Inosuke tried to defend Tanjiro but he got flicked in the forehead and went unconscious as well. Zenitsu just fainted when he noticed what was happening. Nezuko stood up for her brother but couldn't stay angry at Hroda for long. Hroda wondered why and when he went forward to flick Nezuko in the forehead he tapped into Nezuko's mind and he felt everything that she felt ever since she was a child. The pain and the happiness, all of her emotions and wondered if Nezuko knew about this earlier and that was why she didn't want to attack him. He felt bad and didn't want to hurt Nezuko. He took the bamboo stick out of her mouth and he pricked himself to feed Nezuko with his blood. Surprisingly, it worked and she got an immunity to the Sun. He took the boys inside the Mansion once more and told the drum demon to watch over the boys till he gets back. He then carried Nezuko on his back and they went on to find muzan. By telepathically communicating with Nezuko, she was able to sense where Muzan was and told Hroda.
Muzan was surprised to find out that the new God of the Demons came to pay him a visit, Nezuko growled at Muzan and Muzan gave her a menacing stare. Hroda then retaliated with a stare of his own to Muzan, this paralyzed Muzan and it was left with just Nezuko. Other Demons sensed that Muzan had been defeated and went over to Hroda. Hroda thought they would attack but instead, they all bowed down to him and declared him the God of the Demons. He then completely ignored the demons and told Nezuko that he was about to go and that he needed to put her to sleep. Nezuko telepathically replied and said, "Don't worry every thing will be fine, Bye Bye Hwoda" and hugged him. Hroda smiled and started to feel emotional, he missed out on having a little sister, which was his only wish in life. He then put Nezuko to sleep painlessly and sent her to her brother.
Ant teleported him through dimensions once more and he was glad that he got a chance to experience having a little sister once more.