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Van, the fourth son of a powerful noble, is only two years old when he remembers his past life as a salaryman in Japan. With his adult brain in a young body, he's considered a child prodigyuntil he displays the "Production Magic" skill when he turns

The beloved characters of Mairimashita! Iruma-kun star in this Mafia-based spinoff! Young Iruma saves an injured mob boss from death... and then becomes his grandson!?

Read "The Youngest Child of the Family Is Preventing the World From Ending" for free at Story line of "The Youngest Child of the Family Is Preventing the World From Ending":"The stupid youngest one, the one who doesn't know how to do anything, but ca