There is no internet, smartphones, Info-chan, or anything else that did not exist in 1989. This mode only has technology that was available in 1989, along with stricter school rules. Her appearance will resemble the Ayano from the save file that was used to start 1980s Mode. In 1980s Mode, the main character is Ryoba Aishi, who is the mother of Ayano Aishi, as well as the yandere girl featured in the Mysterious Tapes. Currently, the mode can be accessed directly from the title screen, before the main menu has even appeared. This mode can only be accessed through a save file that was used to beat the game. In the full game, after beating 202X Mode for the first time, a new difficulty mode may be unlocked: 1980s Mode.
It serves as the prequel to the game's main story mode, taking place in the year 1989. 1980s Mode is an official mode created for Yandere Simulator.
