The devil is not so black as he is painted!

Fun Execution

The Demon King's Introspection

Simple-Minded Slave

Demon and Human

The Cold Night

Want to Go Home Quickly!

 That Time, The Subordinates Were...

Skillful With Building Blocks

Playmate?

Let's Go To the Graveyard

Perfect Fluffy Circle

Demon Nursery

Important Speech

The Old Man Again

 Major Incident

Close Encounters of the Third Kind

 Before, It Was This Way

Maris and the Magical Beast

Magical Beast Rodeo

The Wedding is Boring!

Imitation Child Maris

You Won't Sleep?

No No Time

Fibber Maris

The Shy Pair

Maris is a Good Child

 The Excitement Doesn't Stop

Tour of Hell

Barrage of Questions

Ball of Mud

Returning Home

Drawing of Leviathan

Maris' Anxiety

Children's Day

Cake's Secret

Hell's Inspection

Maris' Pace

 Big Brother's Childhood

Chubby's Reason

Myself Time

The Magical Beast's Name

Heart's Distance

Composed Person

Childcare Leave Demon King

Stay Here

Mister Whistle

Happy Person

Papa's Playing Around

National Treasure

Dance Dance Dance!

Run Run Run!

Don't Laugh At My Child-Rearing (Part 1)

Don't Laugh At My Child-Rearing (Part 2)

Childish

Bothersome Guy

At Last

3186g

Fireworks

Flustered

Good Girl

Big Baby

Inside Demon

Lovely Turtle

Always a Friend

While Crying

Small Difference

Stop the Bye-Bye

Ikuboss Declaration (Part 1)

Ikuboss Declaration (Part 2)

The Role Called Father

How Much Longer?

Maris' Territory

The Great Demon King's Worries

Obsession

How Many Friends

Boys and Girls

Fwump

Parents and Children are the Same

Are You Asking or Not?

"Make Believe"

Dusk

Hell Wrestling

Dragon Creation

Mother's Love

Yawn

Riding Beast

Good Child, Bad Child

Gratitude Time

The Door That Shut

Hell's Bizarre Story

That Boy, Because of the Doctor

Maris' Sleepover

They Are Talking

Nighttime's Story

Brush Your Teeth!

Playground

The Night Storm!

This Lot

Don't Wanna Go!

Death Castle, the seat of power in the Demon World, is home to three demon kings...and a toddler?! The High Demon King, Death Mask, and his co-rulers Demon King Giant Rock and Demon King Dark Knight find that though they command powerful legions of evil, they aren't immune to a child's cries...and so the sweet, innocent human child Maris will grow up under their care! After all, how hard can raising a child be...?
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(Source: Kodansha USA)