Zom 100: Bucket List of the Dead, Vol. 18 (manga)

Akira and the gang arrive at the International Space Station and find themselves face-to-face with space zombies! Takemina and Ukaji suit up and take a space walk to find a way to get the team back to Earth, but they encounter an unexpected problem. Meanwhile, Shizuka and Akira embark on their own mission to uncover the origin of the zombie virus.