I Am a Hero in a World Where Chastity is Reversed

[I, Mill Shelley
The founder of the men's rights movement, the founder of the reversal genre in the eroge, the adopted son and child husband of the Shelley family
In this world where the brave run away, I will definitely defeat the Demon King and save the world!
The dark power that resides in my brain, in my Mir...]
"Shut up! Get out of my head!! Narrator!!!!"
"Mill, are you really okay?"