We have finally entered the Infinity Castle. Sanemi is running somewhere after slaughtering the demons in his path. Muichiro reaches Kokushibo's location first and begins the fight. Genya arrives shortly after and fires his gun, but Kokushibo is so fast that he appears behind Genya and injures his arm. Just as Genya collapses and Kokushibo prepares to stab him through the stomach, Sanemi leaps in to block the strike and takes over the fight. Sanemi and Kokushibo trade blows continuously, but Sanemi's wounds begin to pile up. As Sanemi fights on without surrendering, Gyomei arrives to join the fray. Sensing the danger, Kokushibo evolves to a new stage and continues the battle. Muichiro pulls the sword out of his own shoulder and rejoins the fight, managing to stab Kokushibo from behind and wound him. Enraged, Kokushibo tries to kill Muichiro, who narrowly evades the attack. Seeing this, Kokushibo turns his killing intent toward Genya once more, but Sanemi stands firmly in front of his brother to shield him.