Complex sentence: He comments that the series was a comeback for dark fantasy that slowly faded away when Shonen Jump transferred to Ultra Jump in 1987, saying that as the series continued, "Naruto" was not supposed to be a comedy anymore.
Split into simpler sentences: He comments that the series was a comeback for dark fantasy that slowly faded away when Shonen Jump transferred to Ultra Jump in 1987. He notes that as the series continued, "Naruto" was not supposed to be a comedy anymore.