Review Detail of Nikideema in I Am Such An Expert; Why Do I Have To Take In Disciples

I was enjoying it until a disturbing theme came up. The MC cooks these martial experts he defeats in a cauldron and refines them into pills to consume. It’s sanitized so nothing gory, and so far they’re only spirits, so it’s not exactly cannibalism, but a cousin of it. In the end, he’s still eating his own species. He’s also constantly ranting about how immoral the protagonists in that world are and how they’re so selfish, killing people whenever they want, but he himself wipes out an entire sect just just so he can have peace, and using the annihilation of that sect as practice for his disciples. When he was talking about immortal and selfishness, he might as well be talking about himself.