Chapter 10 opens with a discussion of the four possible solutions to the mystery of the "ghost" of steel lady Nanase. The first solution is that she is a real ghost. The second is that her appearance is a hoax. The third is that no one has killed her father. The fourth is that he left a damning time bomb in her father's will. The fifth is that his death was a suicide. The sixth is that after her death, she visited her father in the afterlife. The seventh is that the name of the person who would "quietly pass on" to another life is not the same as that of a ghost. This is because no one would be able to pass on that name. The eighth is that rikka has not completely vetoed the story, but once again, he has failed to veto the story. The chapter ends with a soliloquy by the narrator.