The protagonist is the most unusual genetic mutant among Ditto. Put simply, it is a Shiny Pokemon.
Its digestive system has become specialized, allowing it to gain gifts from anything it digests.
Then one day, it digested the brain of someone who had transmigrated, gaining his memories, knowledge, and golden finger. From then on, a strange Ditto appeared in this world.
After ambushing a girl and locking her in a basement, he said to her and her Kirlia, "In the name of survival and reproduction, ladies, would you be willing to lay eggs with me?"
...Should I tell you the protagonist is an Egg-Laying Demon King who is 100% guaranteed to make his partner lay eggs? Just kidding.
This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.