Isai is a senior high school student who has to survive in this world full of novelty, crime, violence, greed and selfishness. Wandering between sin and knowledge and love.
Egg, a beautiful girl who looks 15 years old, is the only successful sample among tens of millions of experimental subjects. Transformed into a cold-blooded, shrewd murderous monster. The appearance of an angel, the armor of a devil.
She is the only thing she thinks is beautiful.
She is protected by her.
She is getting more and more confused...
What does the final dream really look like?