Natsu stops being just the "screaming protagonist." After Igneel’s death, he shows vulnerability, depression, and cold rage. Gray abandons his shirtless bravado for a serious, almost tragic demeanor. Erza, despite losing an eye (Nakagami armor sacrifice), continues to lead. These are not the same characters from the Lullaby arc.
Keywords integrated naturally: Fairy Tail Manga Up to 516, Tartaros Arc, Igneel death, Mard Geer defeat, Aquarius key, Gray Devil Slayer, Fairy Tail guild disband. Fairy Tail Manga Up to 516