Kakugo Hagakure is the main protagonist of the anime and manga series 'Kakugo no Susume' (Apocalypse Zero). He is a courageous young man who dons the Exoskeleton Zero, a powerful combat suit designed to fight monstrous threats in a post-apocalyptic Japan. Kakugo is resolute in his mission to protect humanity, often facing off against his own brother, Harara, who has chosen a darker path. Driven by honor and a strong sense of justice, Kakugo embodies the spirit of a true warrior.