I was reincarnated as a monster in a game world, and I picked up the heroine I admired in my previous life.

Before I knew it, I had been reincarnated into the world of the game I played in my previous life. And as a monster, an enemy of humanity! It couldn't be helped, so I decided to live quietly, trying not to be found by humans... But then, Noah, the heroine I admired in my previous life, was collapsed near my home! I protected her and nursed her back to health, and my admired heroine named me "Ray," so I decided to protect her for the rest of my life and follow Noah. I meet other characters from the game and watch Noah grow, but the real Noah seems to be a bit of a spoiled and overly affectionate type...? This is a story about me, reincarnated as a monster, overcoming difficulties with my beloved admired heroine.