This calculated the timeline relating towards the events of Crossover Together.
These are events that had occurred prior to the beginning of the series.
Feudal/Medieval Japan (1185-1573)Edit
- Shokoshu arrived to earth, beginning the Cthulhu Dark Rest
- The Uzumaki Clan originated.
- The experiments on Kaibutsu began.
- Yugure Kagayaki Moved away.
- January: Misao was beaten to death.
These events happened since the beginning of the series.
- Korosensei became Class 3-E's new teacher.
- Yugure Kagayaki returned to Tokyo.
- Greninja joined Class 3-E.
- Shou Tucker created first successful hybrid, Alexander.
- Misao's spirit passed on to the Skyworld.