The Lord Is a Human Race

In the world of "Sword and Magic", you are reincarnated as a reincarnation with your own plug-in. This is how it should be... But the standard system for reincarnated people never appears anyway, and the most commonly used weapon in this world is actually a musket? In order to gain magical power, you secretly drank an alchemical potion, but the result was that your companions were left in doubt. What can you do if you survive among the cunning nobles? You just have to stop being human!