Read manga: Uchi No Maou Kamimasen Yo

manga
Summary:

In a world where people have supernatural creatures as pets, a certain family has a pet demon-lord Satan. The main carer of Satan is the son, Yuuhei. From initially coaxing the new Satan out of his pet-carrier, to walking him, playing with his ball, and keeping him from fighting with the neighbor's pet Hero, this is the comedic story of a boy and his Satan.

Chapters (37)
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Chapter 35.5 : Extra
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Chapter 35 : My Demon King...
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Chapter 34 : My Demon King Is The Last Boss
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Chapter 33 : I M Home!
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Chapter 32 : I M Off!
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Chapter 31 : My Demon King Is Mad
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Chapter 30 : My Four Diva Is Quiting
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Chapter 29
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Chapter 28 : Our Demon King Has Been Cursed
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Chapter 27 : Our Family Is Going To The Beach
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Chapter 26
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Chapter 25
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Chapter 24 : See You Later
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Chapter 23 : My Demon King Is An Okonomiyaki Flipper
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Chapter 22 : My Demon King Wants To Work
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Chapter 21 : My Demon King Acts As A Demon King
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Chapter 20 : My Plant Is Missing
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Chapter 19 : My Demon King Visits The Zoo
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Chapter 18 : Uchi No Maou In 4 Koma Format.
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Chapter 17 : My Little Sister Is In Love (Part 2)
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Chapter 16
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Chapter 15 : My Demon King Is A Santa
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Chapter 14 : My Demon King Gets Vaccinated
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Chapter 13 : It S Reconciliation, Satan.
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Chapter 12.5 : Extra
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Chapter 12 : My Demon King Is Well-Trained
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Chapter 11 : I M In Love With My Pet
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Chapter 10 : My Demon King In A Gekokujyou Tournament (Part 2)
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Chapter 9 : My Demon King In A Gekokujyou Tournament
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Chapter 8 : My Demon King Is Being Targeted
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Chapter 7 : My Demon King S Changing His Career
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Chapter 6 : Hello, Satan
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Chapter 5 : Four Devas, Defeated
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Chapter 4 : My Zombie Bites
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Chapter 3 : My Demon King Can Speak!
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Chapter 2 : My Lil Sis Is Going For A Walk!
Aug 25, 2019
Chapter 1 : This Is My Pet Demon King