highly-unnatural's manga / #Hotspring(1)

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. Kemono Series: 1. Happy Yarou Wedding — Toudou Akira (teacher/seme) x Yuuhi (student/uke) + Shouta (Akira's son) 2. Utsukushiki Kemono-tachi (Beautiful Beast) — Saijou Chiharu (Kazuki's tutor/secretary to Pres. of Toudou Co./seme) x Toudou Kazuki (younger bro of Akira/heir of Toudou Co./uke) 3. ...Virgin Love — main: Daigou Mikihisa (director of Mercury Co./seme) x Kirishima Kaoru (uke/cousin of Chiharu/works at Toudou Co.), & a bit more of Chiharu x Kazuki -Hot Milk (doujinshi/extra) — Daigou x Kaoru 4. Toriko ni Natta... Kemono (Crazy for You) — main: Chiharu x Kazuki, & a bit of Daigo x Kaoru 5. ...Junai no Seinen (The Young Person's Pure Love) — main: Daigo x Kaoru, & a bit of Chiharu x Kazuki 6. Kemono wa Ai de, Iyasareru. (Smooth over his hurt feeling) — main: Chiharu x Kazuki, with a bit of Daigo x Kaoru (c6) -Iyasaretai Otoko (doujinshi/extra) — Chiharu x Kazuki 7. Playboy Amour. — main: Ian Evans (Pres. of Evans Co./Kaoru's ex/seme) x Sanada Manabu (Ian's secretary/uke), with a bit of Chiharu x Kazuki (c6) - Romance no Kaori (doujinshi/extra) — Chiharu x Kazuki 8. Oboreru Kemono no Koibito — Chiharu x Kazuki, introduces Jin Kyotaro who's brought in to mentor Kazuki 9. Mens Love — Daigo x Kaoru 10. Aikata — main: Jin Kyotaro (Pres of Jin Co./intelligence for Toudou Co./seme) x Saiki Jun (college student/hacker for Jin Co./uke), with a bit of Chiharu x Kazuki (c5-6) 11. Ueta Aikata — Jin x Jun, set mostly before Chiharu x Kazuki was a thing (c1-4) 12. Amaeta Kemono no Shitsukekata — Chiharu x Kazuki, with a bit of Jin x Jun (c5-6) 13. Torawareta Amai Kemono-tachi 14. Aikata no Aishikata -Kazuki Mania 15. Kemono no Marking 16. Erotic ni Kojiakete