Sōichirō just wanted to revisit his home in the city, but with his red oni family and blue oni twins around, things quickly get out of hand. Everyone's heated up and ready to prove who can love him the most! 
(Source: Irodori Comics) 
Note: Published for the 100th edition of the Comiket.

They say there is a village where humans and yokai live together in harmony. A young human boy named Soichiro returns home to the countryside where he spends time playing with an oni girl named Momiji. But when she invites him over to her house, little does he know that this would be the start of his immersion into the world of the Oni. Together with Kaede, Momiji's mom, and the two rival blue oni sisters, Ruri and Hari, join Soichiro in this special compilation of the original doujinshi series "Mating with Oni"! *This deluxe compilation includes 2 Special Epilogue Chapters in addition to the 6 chapters of the Mating With Oni series and features updated art and dialogue. 
(Source: Fakku) 

1. Mating with Oni ~Daughter Chapter~ 
2. Mating with Oni ~Mother Chapter~ 
3. Mating with Oni ~Mother & Daughter Chapter~ 
4. Mating with Oni Sisters 1 
5. Mating with Oni Sisters 2 
6. Mating with Oni 6 
7. Epilogue Part 1 
8. Epilogue Part 2

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