I've really tried to ignore 'that' curing method and focus on his op power since it's all I interested the most. But the author couldn't come up with a new method to cure new woman in his harem. I think most readers of Nano Machine didn't expect romance or even harem, but the author failed to keep it that or at least just romance. Anyone can't say harem is normal in the murim world, if so then make it acceptable! Like OMG the MC is so based, he is monogamous.
It’s very simple, and I’ve never found this plot before. Now, we don’t know yet if the seme guy is actually just a fragment of memory or a real him? But literally, If it’s just a fragment, anyone who can’t move on with loved one’s death is totally fine anyway. I’m looking forward to how this manhwa will turn out to be. And the sex scene is quite normal, so I’ll stick to the main points.