Watch GACHI-BAN: ULTIMATUM Full Movie Free Online 123Movies. The invincible Yanki (Japanese delinquent), Monji Mori, leader of the Black Skull Gang, has been released from juvenile prison. Meanwhile, other infamous Yanki, Hayato, has a run-in with the local Yakuza. He barely escapes thanks to a guy who claims to be from the Gold Skull biker gang. Hayato gets caught in the middle as the two Skulls clash in a turf war of the ages.