https://www.dlsite.com/books/work/=/product_id/BJ01592708.html
自购

Finally, a better res. I hope this story has a sequel.

Base +7, y131614928 +5, Piter993 +9

这次什么花活都没整，就非常了当地堕落了

Base +6, 琳琅のkaze +4

[Story]
Sakura is a young girl with a lawyer father and a former prosecutor mother.
Her family is suddenly overrun by the criminal organization Tokuyama-gumi.
Her father is killed and her mother Keiko becomes the plaything of Tokuyama-gumi boss and loses her life...
A few years later, Sakura, who has become a student investigator and her childhood friend Shin, a boy, infiltrate a boarding school where Tokuyama, the enemy of her parents, is the director.
Sakura is captured by Tokuyama and the school is his domain where he forces female students to serve him in orgies and have sex with the captured female investigators by drugging them.
Sakura loses her virginity to the huge penis of Tokuyama's son Guy, who is obsessed with her and is trained and made into a "slave doll" through physical modification and training.
As Guy's sex friend, she is violated around the clock and Tokuyama teaches her the orgasm of anal sex...
Sakura's orgasmic cuckoldry is shown to her lover Shin...
Finally, Sakura is exposed at a slave auction organized by Tokuyama.
There, she is reunited with her mother, Keiko, who was living as a slave wife...!?
The beautiful face of this dignified young investigator, who has a hidden resolve in her heart, is distorted into an ahegao face!

Base +22, Mirten +7, blaqkthespian +6

德山：区区杀父之仇而已。你是没有了父亲，但是你还有我啊！樱：是的，爸爸！

Base +6, 琳琅のkaze +4

感謝大大分享，將加筆的兩話插入200頁後面再接201頁看更加實用...
期待熟肉...要是未來數位能出無碼版那我只好說: Shut up and take my money!

Base +7

Lol she thanked the guy for killing her dad. That's ice cold.

Base +6

WISH TIKUMA'S OTHER SOUSAKAN WORKS WOULD GET COMIC VERSIONS TOO

Base +6

還是他以前的那些作品好用多了

Base +7