Sunabōzu Odcinek 23: Suspicion and Ambition

As Kosuna takes another job from Natsuko, she wants to be guaranteed that she's not going to be used as a simple distraction like last time. While the journey to the secret laboratory they are supposed to guard is an easy one, Kosuna can't forget the memory of her lost friend, Matsu. As they all get closer to their goal, a mysterious cloud appears on the horizon -- a cloud that holds a secret bigger than any of them could even expect.