Haven't read it yet but keep it up! The type of novel you're writing seems exactly like what I'm looking for (no harem/romance or very little and he can abandon them, neutral evil MC, pursuing immortality through research and other means) but I usually binge read once it's at 100+ chapters.I'm praying you write hundreds of chapters and I'll make sure to binge read and promote this as well! These types of niche novels are rare and I'm sure once you get at least 100+ chapters going, you can start building up a rating.So for now, I'm rating it 5 stars but I'll be back in the future to binge this! Keep up on the novel, you've got this!