https://www.pixiv.net/member_illust.php?mode=medium&illust_id=64294420

Doujinshi.org - http://www.doujinshi.org/book/1028678/

Doujinshi.org - http://www.doujinshi.org/book/1029736/

Toranoana - http://www.toranoana.jp/mailorder/article/04/0030/55/65/040030556570.html

Melonbooks - https://www.melonbooks.co.jp/detail/detail.php?product_id=270229

Suruga-ya - http://www.suruga-ya.jp/kaitori_detail/ZHOI86711

Utano Home Page (Entry) - http://www.icesugar.skr.jp/

Utano Blog - http://icexsugar.blog91.fc2.com/

Utano Pixiv - https://www.pixiv.net/member.php?id=453495

Utano Booth - https://icesugar.booth.pm/

Utano Twitter - https://twitter.com/utaxis

牛頭人的本本……

Base +4, aj135 +6

Anyone know who was screwing Gudako at the beginning...?

Base +6

这……这是人兽？

Base +2

@genryuusai79
The afterword says "I didn't want Gudako to get wrecked by Asterios as a virgin because it'll break her body so... I made her a bitch (sexually active)"

Author didn't bother thinking who exactly she's doing it with.

Base +6, moemoeko +6, turnas +6, Aqua_miki +6

二姐：。。。

Base +4, aj135 +6, cvbrjqm +5, cxy8781 +5, dingdingfeng +1, aa721220 +5, 路人W -4

真.牛頭人本

Base +6, aj135 +6, cvbrjqm +5, （owo） +5, dingdingfeng +1, aa721220 +5, aegisage +6

一开始那个是红A吧

Base +7

我，小牛，一步到胃

我，小牛，一步到胃

Base +6, vandarkholme +6, gyh19990809 +1, keystein +2, ootama +1, a1002967237 +4

二姐被ntr了....

Base +5, aa721220 +5, 路人W -4

二姐:???

Base +4, 路人W -4

美人只配强者拥有.jpg

Base +6, aa721220 +5, ootama +1, a1002967237 +4

我会说我期待已久吗？小牛他有那～～～么棒!！

Base +2, ootama +1

算我求求你们了别在这里提二姐，反胃

Base +2, Laike2016 -4, crazyfoxxxx +4, talarhs8 +4, ootama +1, 路人W +4, a1002967237 +4, fyddkh +1, grit35 +4

牛厨狂喜，阿斯忒里俄斯太可爱了！！！！！

Base +2