A Villainous S*ave Trader Who Has Nothing but Destruction Flags Doesn't Want to Die, so He Trains in Healing Magic

The main character was reincarnated as the cannon fodder villainous s*ave trader of a game!At this rate, there will be nothing but destruction flags, where the s*aves will revolt and tear me to pieces!That’s it! If I practice recovery magic from now on as a child and master it, won’t I be able to heal myself when I get hurt?Moreover, I can sell flattery to s*aves, so it’s killing two birds with one stone!I’m just healing my s*aves in order to save myself, but why are they grateful! ?If I buy a disabled s*ave cheaply and sell them at a high price, I shouldn’t receive gratitude? I wonder what this means! ?Eh! ? The protagonist is the hero of light! ? Ah, I already healed them with my healing magic! ? Iyah, I’m sorry.