- The Sibyl Team nearly kills the girls in episodes 10 and 12.
- Tsubame defeats the girls in every encounter with them, which even scares them.
- Christian's rapid aging and death. Real-life paintings and photographs are seen in episode 24 as his very long life flashes before his eyes.
- The reveal of the real Big Bad, Crane.
- Crane's disgust of the bloodshed of World War I is what prompted him to escape from Earth in 1918. He uses it to justify why humanity hasn't changed at all and needs to be destroyed.
Nightmare Fuel / Cyber Team in Akihabara