https://www.dlsite.com/maniax/work/=/product_id/RJ01350507.html

[Synopsis]

After her parents' business failed and she was left with huge debts, Asuka became a sex slave.
She was ordered by her master to serve on a luxury cruise ship but it turned out to be a den of perverts with too much money and time on their hands.
Asuka had no right to refuse and was forced to engage in various perverted acts, her teammate Misaki was severely injured and near death after being violently violated.
In order to save her, Asuka volunteered to take her place.
As if to mock her dedication, the torture prepared for Asuka was horrifying ---- "10L Server"
Tubes were inserted into her anus and urethra and drinks were stuffed to the limit.
She was tormented by pain she had never felt before but the cycle of violation did not stop...

Base +25, nmak +6, shrö +7, nuts987 +13

第一话呢？

Base +6