BEAST: Atsushi Nakajima and Kyōka Izumi vs. Mercenaries

BEAST: Atsushi Nakajima and Kyōka Izumi vs. Mercenaries is a battle fought between the Port Mafia members Atsushi Nakajima and Kyōka Izumi against a group of mercenaries.

It happened at a warehouse after the mercenaries' attempt to assassinate the Port Mafia's boss.

Prologue
A group of mercenaries have plotted to assassinate the Port Mafia's boss.

Battle
A group of mercenaries who are a fully armed platoon of over twenty soldiers, tries to escape from the darkness while they are being attacked one by one. As one soldier tries to command the other soldiers to don't shoot and use their tactical flashlights to locate the target, a white beast attacks his throat.

The rest of the platoon fire their gun to the beast but the beast snaps the man's neck and soon leaves the scene. The victim's body is left behind and the firing soon stops. As soon as the white beast leaves, one soldier yells that the Port Mafia's White Reaper do really exist.

Their platoon leader soon commands the group to regroup and continues to yell orders. He soon pulls a pin out of a flash-bang grenade. After the grenade is thrown which illuminates the area, the leader commands to open fire to the target however not a single gunshot could be heard. He soon realizes that everyone is dead. Someone from his behind appears and as he turns back, he sees a boy and babbles that the White Reaper is really just a boy.

Atsushi declares that it is the end for the platoon leader. The platoon leader then tells the White Reaper that he has been waiting for him and pulls a detonator out of his pocket. He reveals his true intention of choosing the warehouse as their war zone as it is full of explosives. He continues to tell that the detonator will activate once he takes off his finger to it. He soon tries to let go of the button but nothing happens.

The platoon leader then sees his thumb and the detonator floating in the air in which a white blade had cut through his thumb. Suddenly, a young woman appears clutching the leader's thumb and detonator. She asks Atsushi if she can kill him in which the latter responds that there is no need to as their boss gave orders to let one go.

Kyōka soon lets go of the platoon leader. The platoon leader becomes shocked as to why the Thirty-Five-Man Killer is with the Port Mafia's White Reaper, thinking that she betrayed the mafia and disappeared. Kyōka reveals that she did betray the mafia but came back for the White Reaper.

Aftermath
After the battle, Atsushi suggests to the platoon leader that if he really plans on dying like a soldier to which Atsushi respects it, and decides to fight him, Atsushi has no choice but to do everthing in his power to kill him. The platoon leader glared at both the mafiosi and gives Atsushi his gratitude. Atsushi and Kyōka then head toward the exit. Just as they are about to leave, the platoon leader ask the White Reaper's name and the latter replies that his name is Atsushi Nakajima.