* Year 1780 - The woman who will become the first Aishi is born.
* Year 1797 - The most important events in Yandere Simulator's lore.
* Year 1800 - The first Aishi has a child.

* Year 1830 - The first Aishi's child meets her Senpai.
* Year 1833 - The first Aishi's child has a child.

* Year 1850 - Ayano's g-g-g-g-g-great-grandmother is 17. She meets her Senpai.
* Year 1853 - Ayano's g-g-g-g-g-great-grandmother has a child.

* Year 1870 - Ayano's g-g-g-g-great-grandmother is 17. She meets her Senpai.
* Year 1873 - Ayano's g-g-g-g-great-grandmother has a child.

* Year 1890 - Ayano's g-g-g-great-grandmother is 17. She meets her Senpai.
* Year 1893 - Ayano's g-g-g-great-grandmother has a child.

* Year 1910 - Ayano's g-g-great-grandmother is 17. She meets her Senpai.
* Year 1913 - Ayano's g-g-great-grandmother has a child.

* Year 1930 - Ayano's g-great-grandmother is 17. She meets her Senpai.
* Year 1933 - Ayano's g-great-grandmother has a child.

* Year 1950 - Ayano's great-grandmother is 17. She meets her Senpai.
* Year 1953 - Ayano's great-grandmother is 20. She buys a house in Buraza Town. She has a child.

* Year 1970 - Ayano's grandmother is 17. She meets her Senpai and captures him.
* Year 1971 - Ayano's grandmother has a child. Ryoba is born.

* Year 1989 - Ryoba is 18. She meets her Senpai.
* Year 2003 - Ryoba is 32. Ayano is born.
* Year 2021 - Ryoba is 50. Ayano is 18.