Board Thread:General Discussion/@comment-26231960-20151208064611

Before Ryoba's age was set at 36, I had set the age of what I interpreted as Ryoba's possible age. I was confused as why it was changed and concluded as 36. Here me out on my analysis:


 * Since Ryoba was Yandere-chan's Father's kouhai during 1989, we can safely assume that her age is around 15-17 years old since she would be either a 1st or 2nd year high school student (unless she repeated a year). 1989 - 17 = 1972 ; 1989 - 15 = 1974. Ryoba's birth date would be around 1972-1974.


 * The game's story mode takes place in 2016, as seen in the starting screen's calendar and this twitter post . 2016 - 1974 = 42  ;   2016 - 1972 = 44. Ryoba's age would be around 42-44 years old.
 * Yandere-chan is 17 by the game's events, since her birthdate is either on March 31st or April 1st  and that the starting screen's calendar says that the first day of the game is on April 4th of 2016 (unless she started entering school a year early or late, or if she repeated a year)

Conclusion: Ryoba is actually around 42 to 44 years old during the game's story mode and gave birth to Yandere-chan around 25-27 years old during 1999 (2016 - 17 = 1999 ; 1999 - 1974 = 25 ; 1999 - 1972 = 27).
 * Concerning on what YandereDev said about most Aishi women giving birth at 19 years old, he also stated "I might retcon any of this one day... " and used that word "most".

And also:


 * If Ryoba indeed did give birth to Yandere-chan at 19 years old... (1991 + 17 = 2008 ;1993 + 17 = 2010) ... The game would have taken place during 2008-2010 instead!
 * If Ryoba is indeed 36 during 2016, she would have been born at 1980! (2016 - 36 = 1980) Which would mean that Ryoba would have been around 9 years old during 1989! (1989 - 1980 = 9)

(I apologize if I ended up getting some facts wrong or got any of the computations wrong. How embarrassing if it was the former O//O) 