As a Moments subpage, all spoilers are unmarked as per policy. You Have Been Warned.
- Pii-tan vomiting up those glowing spheres and then finally exploding because his body can't regurgitate them all at the same rate he's producing them. It's sort of explained: the characters in the Japanese name (幽門, Yūmon) for the pylorus, the part of the stomach that leads to the intestines, means "spirit gate," (while in Latin, pylorus means "gate keeper") which is precisely what Piitan's becomes after his (briefly successful) attempt at suicide. The shining spheres are in fact SOULS. The part that isn't explained is why the other three members of the titular Black Paradox group developed their own portals in different parts of their body (and one in his shadow); Pii-tan was the only one of them to actually die, so it doesn't seem to make much sense.
- The spheres are eventually revealed to the world, and people marvel at their beauty, but they can't be used as jewelry as it turns out the spheres are actually extremely powerful energy containers. So, a doctor who is treating the other characters intends to use the spheres as an energy source to solve the energy crisis, and it's implied he does. Problem is, as is revealed by the main character, who is psychic, this causes the eventual extinction of mankind, as the spheres are HUMAN SOULS, and humanity eventually uses up the very energy that keeps them alive. Humans won't go entirely extinct, as eventually they'll find out just where they've Gone Horribly Wrong, but many people will die.
