This.Editor: "So humans become corrupted and forget who they are and turn into monsters..."
Mangaka: "Yes."
Editor: "...That constantly come back to life, or 'respawn,' so to say."
Mangaka: "Yes."
Editor: "And the protagonist can also die as many times as necessary to clear the area and often do? And there are invisible walls preventing travel until a boss is dead?"
Mangaka: "Yes."
Editor: "So basically this is Dark S-"
Mangaka: "Shhh. Shhh. Shhhhhhhhh..."
This.I was thinking he was trying to save himself in the girl body but fails doing so. Then wakes in the girls body causing the loop to continue. Or start for our protaginists time loop.
And also this.I don't mind the main character being a guy but an isekai rule is that you never explain your origins or trust anyone , as soon as you break that rule your manga is instantly ass.