'Tokyo Revengers' Season 4Official Trailer Release Info - Hypebeast

The conflict in this chapter moves away from standard fist-fighting and centers on psychological extremes: Haruchiyo Sanzu's Fanaticism

Sanzu acts as the ultimate agent of chaos in this chapter. While previous antagonists like Kisaki Tetta were driven by calculated, obsessive social manipulation to win over Hinata, Sanzu is driven by a nihilistic, religious-like devotion to Mikey. He is willing to slaughter everyone on the battlefield—both enemies and his own allies—purely to ensure Mikey's uncontested reign.