Reincarnated into another world, I became the illegitimate child of a weak lord, and for some reason, a handsome and effeminate man. When protagonist Noie protected the illegitimate Princess Lin from an assassination squad, he found himself plunged into a maelstrom of conspiracies. This is the story of the kingdom's most valiant man, who seized the kingdom and dedicated it to the princess.

(Serialization Period: November 22, 2018 - April 25, 2019)

※On April 9, 2021, it was published as a book by Kadokawa BOOKS under the title "The Reversal Life of a Low-Ranking Noble in the Frontier: Since My Cute Younger Siblings Are Important to Their Big Brother, I'll Eliminate All Obstacles with Power Granted by a Witch and Modern Knowledge," with Volume 1 released on that date. Volume 2 was released on September 10, completing the series.