Ethel Astaroth, a young man, finds himself in a white sacred hall, greeted by an old man who explains that Ethel is a "perpetual soul," able to retain memories and abilities through multiple deaths and rebirths. Each time Ethel dies, he gains a new power and is reborn in a different world. After acquiring the three Hakis from "One Piece," Ethel is reborn in "A Song of Ice and Fire". With each subsequent death, Ethel will travel to various worlds, gaining unique powers and experiences, gradually uncovering the purpose behind his perpetual soul.