Koibito wa Hatsujouki (Yaoi) manga

Koibito wa Hatsujouki (Yaoi)
Kamon Saeko 2008 released.
Romance / School Life / Smut / Supernatural / Yaoi
恋人は発情期, My Lover in Heat
355 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!

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
2015-01-31 03:48
I loved every story except the first one. Cry baby Sensei and Scary loser were just not my cup of tea.

The smut in this yaoi is real and worth reading. Sheesh make sure to have water for the uke in chapter 3. His thirst was on another level. XD

Also cat seme and the seme at the end with the cold icy eyes were beyond beautiful! Last story was the best by far. It could make its own spin off, that would be nice. *fingers crossed*
2015-01-11 05:40
Good! I wish that the bride of the dragon one could have been a way longer story on it's own, there's excellent potential with that one!
2015-01-01 06:10
Whoa!!!!! That had some amazing short stories that were so lively!!!!! I enjoyed every single one of them!!! I can't choose which is my favorite of all those short stories!!! But love them all!!!!
2014-12-29 09:23

185 Topics

  1. Yaoigurlforever January 27, 2015 9:37 am

    The last one tho!!!! I wish it was longer or for them to make a whole series about it!!!! (*//^//*) IT WAS SO GOOD!!!!

  2. tinang January 4, 2015 10:19 am

    I just love how the last word was "SLAM". It perfectly ends the story.

  3. Yumemi
    December 22, 2014 11:42 pm

    The Bride of the Red Dragon tho!!! wow that last chapter was amazingggg i would definitely love for them to have there own manga series

  4. Lunatic Bandit
    December 15, 2014 7:36 am

    I would LOVE a continuation of the last story.

  5. devilkim
    November 24, 2014 1:06 am

    I realy love the bride of the red dragon, i would have loved if there was a continuation to the story; but i guess that way it keeps a certain mystery.

  6. Aja
    November 2, 2014 7:52 am

    I really wish the last one was longer!

  7. エル October 24, 2014 5:05 pm

    I wish there was more of the last story! It really captivated me. I want moar!

  8. Shia October 8, 2014 8:02 am

    Some are okay but most are a hit and miss. They were either too short or the story was rushed so it was less sexy. The tutor and train ones were had the better plots and flow.

  9. Cheeky Vampire September 25, 2014 7:11 pm

    this manga has everything! :D so amazing *.*

  10. articwolf
    August 21, 2014 7:15 am

    what a lovely story. like the animal ones and the last one.

  11. Sapphirewoman August 13, 2014 12:03 am

    I love this story alot more please thanks

  12. marry July 28, 2014 3:41 am

    i really love the last and the third stories
    i liked how honest the uke was about his desires in the third story and i liked how the uke give himself over completely to the seme in the last story

  13. Cutey Honey July 26, 2014 7:04 am

    If I were to rename each chapter in this story, they would be:
    Chapter 1: Cry-baby sensei and scary loser
    Chapter 2: Loser nerd and his shota
    Chapter 3: Two losers fap on a train
    Chapter 4: The thirst is real
    Chapter 5: Desperate loser screws his dog
    Chapter 6: Wasted loser screws his cat
    Chapter 7: Desperate loser cheats on his fiancee and suddenly goes full homo while in China

    • Zed
      August 2, 2014 11:57 am

      OhmyGod. This made me laugh so I hard I was tearing up x'D I did like this manga but your titles work so well!! :p

    • The 14th August 6, 2014 1:36 pm

      OMFG ROFL of the the best comments i have ever read! Im dying right now of laughter!!! XD

    • Zero September 11, 2014 2:47 pm

      SHIT !!!! My stomach hurts !!!! xD xD

    • MAXX September 18, 2014 7:07 am

      LOL ^-^

    • Vette
      September 25, 2014 3:07 am


    • shh December 15, 2014 6:49 am

      "Two losers fap on a train."
      This is the most accurate yet hilarious description I've read in my life.
      Thank you.

  14. Creepy stocker July 19, 2014 10:08 pm

    I love this manga

  15. mal July 19, 2014 1:17 am

    yoooooooooooooo what the friiiiiiiiiiiiick

  16. KKolorful July 11, 2014 6:29 am

    oh man I found it again!
    I freakin love the last story idk why but I have literally been daydreaming about it for the last like 5+ months haaaa

  17. Okane8aNai June 30, 2014 6:10 am

    wow >#< chapter 4-5 sure was something special. That cat was so hot tho *-* omgosh..

    • The 14th August 6, 2014 1:46 pm

      Ikr i love stories where cat-human or dog-humans are seme! KYAAAA

  18. onna31 June 25, 2014 10:35 pm

    Hot!!! Read with caution! Though i wish the last pairing have more scene, like the coworker worry he disappeared n serching for him....he been spirit away to some old time kingdom n such will b nice

  19. mangalover June 23, 2014 11:00 pm


  20. squishy 9264 June 19, 2014 4:46 am

    *Blinks* ... *speechless* .... Well, I have read a lot of yaoi, but THIS is something "different".