Just found the variables for what the endings are, strangely they're in map99, an ending screen, not map97 or map 98 (final floor in the ruins where you choose which ending you want).I do not understand exactly how I can reach the end of 7
v[128] > 249 is People Experienced. So she has to basically fucked more than 249 different people.
v[144] > 9 is number of times she gave birth, so more than 9 children.
The s variables are, I'm not 100% sure but pretty sure, flags that you get from achieving different points in the story i.e.; s34 and s57 are different because s34 would just be intimacy: 100 and s57 would be the same thing, but she's her interest in sex is high and her lewd level is high and/or she had sex with many men.