It could have been a great story but the author changes the mc to make it drag on longer, also simply. So the was the girl he could not implant the seed of the mind he did not her the first time, I understand why he did not kill her that time. But the next time is straight up simping if you can't control it, he should kill and take the power, instead of manipulating remotely simping. The are other problems what about all the demon powers and spells, they are only skills and weapons and tiles. You might erase what makes demons supreme. then the is the mentality of paying people back.So in total lots of potential if done correctly, but wasn't simping galore and erasing what makes a demon a demon.