Koibito wa Hatsujouki (Yaoi) manga

Kamon Saeko 2008 released.
Romance / School Life / Smut / Supernatural / Yaoi
恋人は発情期, My Lover in Heat
1314 voted


The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised.

Kiyoharu, friendless and without a family, owns a single dog, Jirou. The dog, which miraculously turned into a human six months ago, went into heat and ravaged his master~

"Jiro, I love you very much - but it troubles me to have you make love to me so deeply." As Kiyoharu becomes deeply troubled, Jirou goes into heat yet again!

Photos about this manga

(All 272)

Other manga by the same author(s)


Koibito wa Hatsujouki Ch.7(end)

Feb 11, 2011

Koibito wa Hatsujouki Ch.6

Feb 11, 2011

Koibito wa Hatsujouki Ch.5

Feb 11, 2011

Koibito wa Hatsujouki Ch.4

Feb 11, 2011

Koibito wa Hatsujouki Ch.3

Feb 11, 2011

Koibito wa Hatsujouki Ch.2

Feb 11, 2011

Koibito wa Hatsujouki Ch.1

Feb 11, 2011
Total: Sort by: Popularity / Date
2014-08-01 11:56
full of hot sex (Y)
2015-07-29 16:18
1st story <3 <3
2015-07-28 06:09
very yummy
2014-08-04 12:33
I love all of Kamon Saeko's work. Her art style is so cute! o(≧∇≦o)

223 Topics

  1. Sonea
    January 27, 2016 3:52 am

    that résumé is hilarious ! "The dog, which miraculously turned into a human" because who cares about why ? (≧∀≦)

  2. _yaoi_girl_
    January 24, 2016 9:16 pm

    The last chapter was very... mmm ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄

  3. Jessie January 15, 2016 2:05 pm

    i think the last chapter is fucked up. i mean, what happened to his future wife? she must have been worried and i really don't like cheaters.

    • killua_zoldyck0896 January 15, 2016 3:23 pm

      I eel you.. I really despise cheating.. so even though the manga itself is good, I always end up hating the manga..

  4. Blast January 3, 2016 4:59 pm

    That last chapter is sooooo hot! My eyes are burning xD ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄

  5. Aga December 27, 2015 7:23 pm

    Wow, All those ukes are so lusty! ヾ(☆▽☆)

  6. OniGiriGirl December 23, 2015 11:04 am

    The stories were all good and cute but that last one feels like it could really become something more. It was an interesting story line. ^_^

  7. alrkitty
    December 17, 2015 5:35 am

    these stories are all really erotic but I keep feeling like they deserve more chapters. I really liked the concept ideas so it would have been nice if they all had extra chapters.

  8. CrazyfanOrSomething December 4, 2015 7:19 pm

    lol, does anyone else wonders what will happen to his future wife? Haha....to find her future husband missing xD

  9. laxius
    November 8, 2015 2:34 pm

    in Third chapter, Two students...it was a new thing for me, which wasn't bad in and of itself, but...
    how can you have your pants down and be humping on the train??
    Only in hentai, I guess.

  10. NipahNipah
    October 25, 2015 2:51 am


  11. Yay panda!
    October 9, 2015 4:28 am

    Only time I've ever seen an uke ask the seme to lick his butt. Props. Get it boy.

    • CatCat
      November 10, 2015 6:05 am

      I was going to comment on that too! Surprising but I liked it lol

    • LoveBunny
      February 5, 2016 7:35 am

      Personally I wouldn't have the guts to ask that.lol

    • CatCat
      February 5, 2016 5:11 pm
      Personally I wouldn't have the guts to ask that.lol LoveBunny

      lol yeah I'd be embarrassed to ask that. It's kind of one of those places where the person licking really has to want to or it could be seriously gross for them haha.

    • LoveBunny
      February 6, 2016 4:00 am

      Ikr? Fricking hilarious though.

  12. nana-chan September 18, 2015 8:46 am

    kyaaaa!! i want more story about chapter 7 it so mysterious n hawt love it!!!

  13. kawai ange September 14, 2015 1:22 am


  14. AlisonRedblood September 9, 2015 12:44 pm

    That last chapter tho
    So sexy
    Luv it

  15. Eunriehyun
    August 30, 2015 4:23 am

    Is there a continuation of the last chapter?

  16. Black angel
    August 25, 2015 3:47 pm

    The last chapter was hot
    Want moreee!!!!

  17. hemani August 23, 2015 11:40 am

    God that Chinese guy was too sexy, I want this story to be continue

  18. ♚ ウサギの先生 ♔
    August 21, 2015 12:39 am

    The last one was mysterious, shame that it isn't longer, it seems so interesting.

  19. R August 20, 2015 6:37 am

    The last one is awesome (≧∀≦)