https://ec.toranoana.jp/tora_r/ec/item/040030799518/

Ah Yes sorry for the delay with the scan but I hope your necks have recovered and are fine... Can't have y'all turn into owls...
∀ɥ ⅄ǝs soɹɹʎ ɟoɹ ʇɥǝ pǝlɐʎ ʍᴉʇɥ ʇɥǝ sɔɐu qnʇ I ɥodǝ ʎonɹ uǝɔʞs ɥɐʌǝ ɹǝɔoʌǝɹǝp ɐup ɐɹǝ ɟᴉuǝ˙˙˙ Ɔɐu,ʇ ɥɐʌǝ ʎ,ɐll ʇnɹu ᴉuʇo oʍls˙˙˙

Scanned by super shanko.

The 4th Soushuuhen will hopefully be done by next week but not guaranteed due to the sheer size as it's almost twice the thickness of the other soushuuhen's for now enjoy the 17th chapter and enjoy the weekend.
English Translations
Ch 1-3+epilogue /g/1556341/3a771885d0/
Ch 4. /g/300975/315001e17c/
Ch 5. /g/483390/9527d0027f/
Ch 6. /g/996117/2e772a8557/
Soushuuhen 2 epilogue. /g/1557513/61bd19792b/
Ch 7. /g/1119437/7bd9b00abc/
Ch 8. /g/691563/c146dfa945/
Ch 9. /g/694081/f9230d19cf/
Ch 10. /g/752861/5ca330fe46/
Ch 11. /g/995039/51771601b0/
Ch 12. /g/931458/a72cbb7eef/
Ch 13. /g/1119436/db76ae5c01/
Ch 14. /g/1201457/39081d755d/
Ch 15. Missing translation
Ch 16. /g/1536347/a2018f2b83/
中国翻訳
Ch 1-3 . /g/1260430/f476495e08/
Ch 4. /g/1238249/f43bd75e8b/
Ch 5. /g/1238244/03258089a4/
Ch.6 /g/1238250/80f390d293/
Ch 7. /g/1257541/4dc8bcca30/
Ch 8. /g/1232629/967de3f4e4/
Ch 9. /g/1232633/0cbf160c3d/
Ch 10. /g/1232636/8d62d52000/
Ch 11. /g/1232640/f2258030e4/
Ch 12. /g/920257/f4053a731a/
Ch 13. /g/1232641/9183acea1d/
Ch 14. /g/1232642/ccec5ad3d0/
Ch 15. /g/1272707/e998942987/
Ch 16. /g/1343863/4ec493fa54/
Ch 17. /g/1588361/7e53bf98c2/

Last edited on 14 March 2020, 03:56 UTC.

Base +12, Acerola +15, Fills +6, AURORA100 +6, phresh23 +8, blackfeather252 +6

they only add some mmf as bonus in the soushuuhen,
not very gangbang-ish so it's ok :0

Base +16

*heavybreathing*
finally at last... thanks for your hard work ^^

Base +6, Mirten +6

nicenicenicenice

Base +6

thanks man

Base +6

Thank you very much for the upload!

Base +7

thanks !wating this for a long time

Base +4, Three Seven +6

According to this new tweet from the artist, he/she is going to make Chapter 18, an illustration book and an acrylic figure for C98.
https://twitter.com/sansyokuamido/status/1237652251352551424

Base +7

Holy fuck Addelheim, you just uploaded some insanely ball buster content today! all these Sansyoku Amido doujins omg

Base +7

I have the soushuuhen ready to upload this Friday

Base +14