Mushoku tensei: Reincarnated in an Unknown world

After his death, 24-year-old Stephen Greyjoy is reincarnated in a new world full of opportunities, but also misfortunes, and will face strong opponents to achieve his greatest wish. Warnings: -The MC reincarnates in the year K388, the same year Paul Greyrat was born. -The MC doesn't know anything about the Mushoku Tensei novel. Depending on how much support this novel receives, more chapters will be released. I don't own the cover, any characters, or references in the Musoku Tensei work. English isn't my first language, but I'll try not to make mistakes that harm the story.