The Reincarnated Prince, a Bit Put Off by His Family's Ruthlessness

Core Premise A Japanese salaryman who spent his whole life alone, desperately wanting a wife and kids, dies and reincarnates as Rieto — the 8th and lowest-ranking prince of the Volte Kingdom. He wakes up at age 5 after surviving a poisoning attempt, vaguely remembering his past life. His one goal: build a happy family. The World A medieval European-style fantasy kingdom rife with brutal succession politics. The king has 3 wives, 3 concubines, and 8 sons — all competing for the throne. Rieto, born of a one-night stand with a minor baron's daughter, is the least legitimate and most ignored prince. Nobody takes him seriously. Which is exactly why he survives.