A Reverse/Post-Isekai story.

When he was only fourteen, Morgan Moon was thought to have died in an infamous plane crash. Instead, he arrived in the world of Validar where he discovered that he was the Chosen One prophesied to rid Validar's Nine Realms of its maniacal tyrants. After a decade-long adventure across this new world, Morgan fulfilled his destiny at the cost of his life. This, however, only concluded the hero's saga in Validar itself. Rather than making a final departure to the afterlife, he's found himself back on Earth after ten years. To his shock, he hasn't made the journey alone. Quite a few and far from the friendliest of Morgan's 'old associates' from Validar had made their way to Earth ahead of him, and they all have been eagerly awaiting the Chosen One's return for one reason or another.

The hero's homecoming will not quite be the wholesome event he was hoping for.