Ch. 684Mastering Time!
Kenichi Amamiya mastered his understanding of time and planned to use the Time Machine's energy to wield it, while placing Hiroshi Ōtsutsuki in a genjutsu world to grow up. Now an adult police officer, Hiroshi investigated his mentor's gruesome murder and saw a shadow move through the apartment where the case began.
- Kenichi Amamiya reached one hundred percent understanding of time, fainted from the information overload, and woke three days later able to sense the torrent of time.
- Kenichi Amamiya decided to research whether the Time Machine's energy could pay the cost of using time, then asked Kaguya Ōtsutsuki about making Hiroshi Ōtsutsuki mature through genjutsu.
- Hiroshi Ōtsutsuki grew up in a genjutsu world, became a Tokyo patrol officer, and was assigned to investigate the brutal deaths of his mentor Ryoya Yamaguchi and colleague Yuran Niino.
- Hiroshi Ōtsutsuki traveled to room 402, where the noise complaint had originated, and examined the apartment of missing tenant Tatsuya Yamagami.
- Hiroshi Ōtsutsuki saw a shadowy figure pass in the bathroom mirror and rushed toward the doorway with his baton ready.