The Devil King Is Bored - Vol. 3 Ch. 30

[MangaDex]

 

[thegoatrider]

when your ego is so big you try to take over your son

 

[KafukaPalazzo]

Too bad the human princess wasn't here, she would have enjoyed the view of Mashim riding the demon king.

 

[RayS]

So... Pluyton was too egotistic to just die?

 

[mud]

@RayS
Obviously, I mean he did hold infinite power for who knows how long.