https://www.dlsite.com/maniax/work/=/product_id/RJ01730642.html

Previous "delusion" chapters (where Nanaka imagines what could have happened):
Chapter 1: https://e-hentai.org/g/3182242/b82c244f33/
Chapter 2: https://e-hentai.org/g/3659780/3533e9e3dd/
Chapter 3: https://e-hentai.org/g/3952093/53438908d1/

All chapters in the series:
Chapter 01: Japanese (original) | English (Translated)
Chapter 02: Japanese (original) | English (Translated)
Chapter 03: Japanese (original) | English (Translated)
Chapter 04: Japanese (original) | English (Translated)
Chapter 05: Japanese (original) | English (Translated)
Chapter 06: Japanese (original) | English (Translated)
Chapter 07: Japanese (original) | English (Translated)
Chapter 08: Japanese (original) | English (Translated)
Chapter 09: Japanese (original) | English (Translated)
Chapter 10: Japanese (original) | English (Translated)
Chapter 11: Japanese (original) | English (Translated)
Chapter 12: Japanese (original) | English (Translated)
Chapter 13: Japanese (original) | English (Translated)
Chapter 14: Japanese (original) | English (Translated)
Chapter 15: Japanese (original) | English (Translated)
Chapter 16: Japanese (original) | English (Translated)
Chapter 17: Japanese (original) | English (Translated)
Chapter 18: Japanese (original) | English (Translated)
Chapter 19: Japanese (original) | English (Translated)
Chapter 20: Japanese (original) | English (Translated)
Chapter 21: Japanese (original) | English (Translated)
Chapter 22: Japanese (original) | English (Translated)
Chapter 23: Japanese (original) | English (Translated)
Chapter 24: Japanese (original) | English (Translated)
Chapter 25: Japanese (original) | English (Translated)
Chapter 26: Japanese (original) | English (Translated)
Chapter 27: Japanese (original) | English (Translated)
Chapter 28: Japanese (original) | No English Release
Chapter 29: Japanese (original) | English (Translated)
Chapter 30: Japanese (original) | English (Translated)
Chapter 31: Japanese (original) | English (Translated)
Chapter 32: You are here | No English Release

OP, by "delusion" you mean chapters where "real sex" happens? Is this a a real fork made by the author?

Base +6

Probably not, I think the author still didn't made a work where Nanaka is involved in actual vaginal sex yet

Base +6

这个脚趾…作者你憋两个月就这吗…（）

Base +6, ehuser1145140 +2