Detailed Save for those who needs it...
Save 01 - [Riku Chapter 1 Start; Sienna 0%, Mira 0%]
Save 02 - [Riku Chapter 2 Start; Sienna 10%, Mira 10%]
Save 03 - [Riku Chapter 3 Start; Sienna 30%, Mira 30%]
Save 04 - [Riku Chapter 3 END; Sienna 40%, Mira 40%]
Save 05 - [Sienna Chapter 1 Start; Sienna 40%, Mira 40%]
Save 06 - [Sienna Chapter 2 Start; Sienna 50%, Mira 40%]
Save 07 - [Sienna Chapter 3 Start; Sienna 70%, Mira 40%]
Save 08 - [Sienna Chapter 3 END; Sienna 90%, Mira 40%]
Save 09 - [Mira Chapter 1 Start; Sienna 90%, Mira 40%]
Save 10 - [Mira Chapter 2 Start; Sienna 90%, Mira 50%]
Save 11 - [Mira Chapter 3 Start; Sienna 90%, Mira 70%]
Save 12 - [Mira Chapter 3 END; Sienna 90%, Mira 90%]
Save 13 - [Last Battle - Normal END; Sienna 90%, Mira 90%]
Save 14 - [Last Battle - Sienna END; Sienna 100%, Mira 90%]
Save 15 - [Last Battle - Mira END; Sienna 90%, Mira 100%]
Save 16 - Harem END
Save 17 - [Last Battle - Harem END; Sienna 100%, Mira 100%]
Save 21 - Sienna's 1st NTR
Save 22 - Sienna's 2nd NTR
Save 23 - Sienna's 3rd NTR
Save 24 - Sienna's 4th NTR
Save 25 - Sienna's 5th NTR
Save 26 - Sienna's 6th NTR
Save 27 - Last Battle - Sienna NTR END
Save 28 - Mira's 1st NTR
Save 29 - Mira's 2nd NTR
Save 30 - Mira's 3rd NTR
Save 31 - Mira's 4th NTR
Save 32 - Mira's 5th NTR
Save 33 - Mira's 6th NTR
Save 34 - Last Battle - Mira NTR END
Save 35 - Double NTR END
Save 36 - Last Battle - Double NTR END
Save 37 - Recollection Room