☆Volumes 1-9 of the original work and Volumes 1-8 of the comic are now available! Thanks to a goddess, I was reborn as a noble! Everything was going smoothly until I realized that the skill I received, [Toxin Decomposition EX], was so mundane that I was constantly mocked at home. However, one day, I discovered that I could eat the magic stones of monsters and absorb their abilities, and that I was actually a prince of a neighboring country! At the royal castle, I found an environment where I could experiment and train with abundant magic stones, drawing out my ultimate power— Eventually, I even acquired the abilities of the legendary monster, Dullahan! Surrounded by proactive fiancées and clumsy female knights, the new life of a boy on his path to becoming a 'King' begins!! The perspective is from the protagonist in the early stages, but it changes to third-person later on. I apologize for the change, but the third-person perspective is the main approach. ※The original work refers to the book version. This is the web version, so the content is entirely different from the book version. The manga adaptation follows the book version, so the content is also entirely different from the web version. Please understand this. ※This is also being simultaneously posted on Kakuyomu.