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The audience starts a commotion at Maou’s transformation.
「T, this is bad! Everyone, quickly escape! That is father’s last stand form! But, he loses his reasoning in it, he is going to kill indiscriminately!」
With one of Maou’s sons’ shout, the audience starts screaming in panic.
But, the entrance is narrow, it’s not easy to evacuate. Also, given Maou’s terrifying fighting spirit, there are many unconscious people.
「Garuaaaa!」
「Hii

」
Maou leaps at one of the spectators.
He could only sit in place with a pale face because of fear.
「Your opponent is me, right?」
「

!?」
I drive a knee to Maou’s head just a moment before he could pierce the spectator with his fangs.
「Urugaa!」
Maou changes his target to me with an angry roar.
He swings his sharp-clawed forepaw at me. I evade it by jumping in the air, but I had an unpleasant feeling, so I immediately dodged to the side.
Five sharp cracks appear in the ring.
He swings his forepaw again, and another five cracks appear.
It seems that Maou can shoot the fighting spirit in his claws through the air.
Because he can shoot ten times at once, I try to avoid through the gaps.
But, if I keep on dodging, the spectators won’t have a chance.
The audience seats are torn apart, and several spectators got already involved.
「Oioi, cherish your citizens」
「Garuaaaa!」
I caution him, but as expected, he completely lost his reason.
I don’t have a choice, but to stop him forcibly.
「Ora」
I avoid the claws through a gap, approach Maou and kick his face.
Furthermore, I hammer several punches into his abdomen and finally roundhouse kick his ass.
「? It didn’t work

?」
Although each hit was enough to make him lose consciousness, Maou counterattacked immediately as if there was no damage.
Indeed, his body’s defensive powers increased to the point his bipedaling form can’t even compare.
But, even still, he should have received considerable damage from that.
「Is his sense of pain turned off? No, that’s not all」
I examine him with〈Pinnacle of Appraisal〉and find that the damage he received is being regenerated at a tremendous rate.
The regeneration speed is so high that even my〈Pinnacle of Survival〉can’t compare.
Rather, a demon king with restoration ability is impossibly hard to beat in video games.
「Papa!」
「What are you doing!?」
「But, there should be something we can do to return him back to the normal form

 right」
「No, once he’s in that form, it will take a full day for him to return back ssu yo! At this rate, the city will get destroyed ssu!」
Touga shouts with a sorrowful expression.
「In other words, it’s a double-edged sword, huh. Does he desire to destruct this city himself?」
「T, this city already fell into a grave situation once father becomes Maou, though

」
One of the Maou’s sons answers my question.
Then, I will have to make Maou return back personally.
There’s one thing that regeneration can’t recover from

 and that is death.
Although Maou, he is the ruler of this city. There’s a risk that the balance between the four demon kings will collapse.
「Can’t be helped

 Advanced Magic〈High Pressure〉」
I use a gravity magic.
The gravity on Maou’s body is increased by several times.
But, Maou can calmly attack even from within the gravity sphere.
「Impossible to suppress him with an Advanced Magic, huh」
As expected, demon king’s movements can’t be suppressed with an Advance Magic.
「How about this? Ultra Grade Magic〈Giga Gravity〉」
Maou’s massive body is flung against the ring.
The ring dents under pressure and creates a crater.
「H, he sealed his movements ssu!?」
「Ultra Grade Magic!? He is also able to use magic!?」
「But, the consumption of magical power shout be tremendous! It won’t last for more than a minute

!」
No, I can last for a whole day without worries.
The magic power consumption of Ultra Grade Magic is high, but it’s not worth saying to me who possess〈Pinnacle of Magic Power〉.
But,
「

 So much spare time

」
◇ ◇ ◇
The next day. Maou has returned to normal.
「He’s our city’s savior!」
「Thank you!」
「He’s a hero!」
Because of the Beat Mazoku loving the strong, the arena became loud with praises.
When I kept on safely restricting Maou’s movements, the spectators filled the arena soon again.
Still, using magic power for a whole day is quite tiring.
I didn’t have troubles with stamina and magic power, but I was bored the whole time.
「Maa, anyway, now you won’t have a problem with it, right? I will be taking Touga」
I demand Touga from Maou who woke up as was promised.
「N

」
「N?」
「No waaaaaaay!!!」
Maou shouts.
「I won’t hand Touga over! Neveeeeeeer!」
「What are you saying ssu ka! The Father1 and others demonstrated their powers and defeated youssu! You don’t know when to give up ssu yo!」
Touga shouts. Who is this The Father person?
「But

 but

」
Maou has tears in his eyes.
「To begin with, didn’t you say that I’m not worth worrying about ssu yone?」
「Ugu

」
Maou hangs his head at Touga’s point. And then, he mutters with a voice that nobody could hear,
「There’s no way you are not worth worrying about

」


 Maa, it’s that.
He may look like that, but he’s a tsundere, this fellow.
He is actually really attached to his daughter.
「Do not worry, Maou」
I clap on Maou’s shoulder.
And then I tell him with a gentle smile.
「I will be properly affectionate to Touga. As to a pet」
「Guoooo! I won’t allow this! Not allooooow!」