As the Prince of the Kingdom of Ix

Yosei was reborn from another world. He was an orphan in his previous life and experienced family love in this life, which gave him unimaginable power in his previous life. The king died of old age, and before his death he asked him to assist his sister in running the country. Looking at his unsophisticated sister, he made up his mind to do something in the dark world in order to protect his sister! And in the process. He and the brave men defeated the Demon King; solved various disasters that the kingdom was about to face; and swore an alliance with the elves; overseas trade was approved by the Mermaid King, but he asked Yosei to marry their princess... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.