The world's largest black pearl has vanished without a trace, and it's up to Detective Ippei to track it down. His only clue is the mysterious words...
One day, a young man from a rural area came to Tokyo with the aim of attending university, and suddenly he wrote about the incident. Using this as a...
A female college student who had a boyfriend, worked as a tutor part-time, and lived an ordinary but fulfilling student life. However, as soon as he...