Oboreru Kemono No Koibito

[from Fantasy Shrine:]
Kazuki, the young master of Toudou Group undergoes training on becoming the heir of the company per his father’s instruction, which finally drives his tutor for 12 years and now lover, Chiharu, to the brink of insanity and takes matters into his hands! How far would Chiharu go and how much could Kazuki tolerate from his beast lover?
The most popular “beast” couple’s drama unfolds!
Eigth in a eight-volume series, all of them can read as a standalone.
The series goes like this:
1. Happy Yarou Wedding
2. Utsukushiki Kemonotachi {BEAUTIFUL BEAST}
3. Virgin Love
4. Toriko ni Natta Kemono {Crazy for You}
5. Junnai Tokkou Taichou [Junai no Seinen] {The Young Person’s Pure Love}
6. Kemono wa Ai de, Iyasareru {Smooth over his hurt feeling}
7. Playboy Amour
8. Oboreru Kemono no Koibito
9. Men’s Love