It's time for the final battle. The leader of the Z group is above, and the two of them are ready to fight. They're about to fight, but the leader warns them to back off. He's not going to let the leader escape, because he's the one who committed the sins of the company. Oh, and by the way, the leader reminds them that they're being framed by the Z company, and that's why they didn't kill the leader when he was on the ground. Uh-oh. The Z leader says that he saw a group of men wearing masks and tattoos, and he saw that they were members of the underground organization from the company that killed his father. Um, that sounds like a trap, right? The Z group has rules about killing anyone from the enemy group on sight, so the leader doesn't have to kill anyone who's on his or her own sight. The group is losing the battle, and one of them has to stay and fight with the leader. But the leader isn't strong enough to stop them, so they'll have to shoot down the enemy's plane. The only thing that matters to the Z leader is that he has to let sister sa know what happened to her. He has to help her find the person who killed her father.