Kemono series (all)

"I'm Tsuzaki Yuuhi. For some reason I am working as housekeeper for Professor Toudou Akira... even though he has a son, I... am in love?!"

Introduces also Saijo Chiharu and Kazuki Toudou.

Kazuki - heir of the Toudou group, has been having sex with his tutor and guardian - Saijo Chiharu, but not even once have they kissed. Not satisfied with his love life, Kazuki decides to make a big confession!

Introduces also Kirishima Kaoru Chiharu's co-worker and Kazuki's love rival?

Kirishima Kaoru a representative of the Fujido Groups is a cold and unapproachable beauty. Will handsome Daigou Mikihisa be able to win Kaoru's love?

It also follows up the relationship between Saijo Chiharu and Kazuki Toudou

In order to help his super busy secretary lover Saijo Chicharu, Kazuki Toudo decided to work in his father's company. Then he suddenly learned of Chicharu arranged marriage ....

It also follows up Kirishima Kaoru and Daigou Mikihisa, Toudou Akira and Tsuzaki Yuuhi and introduces Ian Evans.

Kirishima Kaoru is the representative of Fujido Groups while Daigou Mikihisa is a young executive of American corporation Mercury. Due to his deep-rooted insecurities, Karou continuously tests Daigo's affection! And now, Karou's previous boss and lover Ian Evans wants Karou back! Who will win this struggle for power and love?

Also included a side story about Saijo Chiharu and Kazuki Toudou.

As the son of the huge enterprise, Kazuki had always been starving for real affection and the appearance of Saijou Chiharu redeemed him from that miserable life. However, one day a suspicious document came saying that Chiharu had the plan to take over the whole group. Because of that document, Chiharu's unknown past was exposed...!?

Introduces also Saiki Jun and Jin Kyoutaro.

Chiharu x Kazuki

Ian Evans is your run of the mill corporate play boy with a new pretty boy in his bed every night. His secretary, Sanada Manabu, manages nearly every aspect of his life including making sure those pretty boys don't over stay their welcomes. So what happens when Manabu shows up at his bosses favourite bar and offers to go home with him?

Kazuki wakes to the realization that he fell asleep while having sex with his lover Chiharu. Hungry for more, will Kazuki be able to seduce Chiharu and pick up where they left off?

Kazuki undergoes training on becoming the heir of the company per his father's instruction, which finally drives Chiharu, to the brink of insanity and taking matters into his own hands! How far would Chiharu go and how much could Kazuki tolerate from his lover?