Save 3: Start of Chapter 1.5 (Unlocked access to the Waterfall)
Save 4: Start Chapter 2 (Access to the Kunoichi Village)
Save 5: Met all girls from Chapter 2 + Seen most of the scenes from the first village
Save 6: Done with the buildup scenes for Chapter 2
Save 7: End of Chapter 2. Part 3

Save 14 : End of Chapter 2. Part 3 => FUTA ON MALE DISABLED