“What!!!”

I jumped out of bed. The reason why I jumped out of bed is because I suddenly felt a strong reaction from my high-speed crisis sense.

“I just arrived. You’re quick to notice.”

I turned my eyes toward the voice and saw a strange man standing there, wearing a long black jacket with a hood and holding two scythes in his hands.

“If you don’t mind my asking…”

“Ah, my sister has been taken care of by you.”

This man had silver hair and red eyes, just like Dia. He also had three pairs of wings on his back, similar to Dia’s. From the way he looks, you can imagine that he’s Dia’s brother.

“Don’t be so alarmed. If I wanted to kill you, I would have done it already. Besides, I don’t have a contractor, so I’ve forced myself to come here. So I won’t be here very long. Rest assured that I will return to the devil world after I finish my business.”

It’s true that if he had wanted to kill me while I was sleeping, he could have done it right away. Or rather, he could come here on his own without a contractor?

A little while after the Devil King finished speaking, he carried his scythe on his hip and then bowed deeply.

“Please take good care of my sister.”

“Ha a?”

I was so surprised by the suddenness that a strange voice came out. I quickly regained my composure. Then I asked him the questions that had been bothering me.

“Why are you asking me that? The contractor is my sister, Sophie, right?”

This was the first thing that bothered me. I don’t have much direct contact with Dia. Sophie is the right person to ask this, not me.

“I’ve been watching you guys all day. Your sister’s qualities, her education…she’s a gem, one of a kind in a few hundred years. However, she is still immature. Especially her heart. Today’s incident was the result of a great deal of immaturity.

My sister, who still doesn’t know her right from left, will be greatly influenced by her contractor, for better or worse. Conversely, if the contractor is good, my sister will be influenced by him. And I believe that you are the only one who can guide your sister, the contractor, in the right direction and help her grow in the right direction. And in the unlikely event that she and her contractor go out of control, you, who have a contract with the King of Spirits, can stop them by force. That is why I asked you to take care of my sister.”

“I see…”

I thought he was a rather fearsome person because he was the Devil King, but he was not like that. The actuality is that he was a kind, family-oriented guy.

“That’s about three percent of the reason.”

“And the remaining 97%? …”

“That’s because you’re a Siscon too!” (Sister complex)

A siscon…? What do you mean? What do you mean by that?

“This is my own theory, but there are no bad guys who are siscons. In fact, none of the devils I’ve killed so far have been Siscons. A siscon is someone who loves his sister and protects her. I trust such a siscon more than anyone else. That is why I asked you, who is also a siscon and who loves his sister, to help me.”

Ah…. The respect I had for the devil king as a person of character crumbled in an instant.

“I had been trying to prevent my sister from signing a contract with anyone for her own good, but this time it completely backfired on me. My sister is so pure and the cutest little thing that it would be very easy for her to get a contract with a strange contractor. That’s why I was trying to decide on the contractor with my strict screening process, but I couldn’t find the right person…. Well…in that respect, I am glad that your sister is a contractor with a high enough score…. It seems that I’ve restrained my sister too much. That is probably why she has done such reckless things as she did this time. Would it have been better to raise her more freely? No…but there are many dangerous people in the demon world. If a demon had done something to my sister, I would have destroyed him…. Besides…”

“……Time okay?”

“Oops… that’s right. I don’t have time for all this loving sister talk.”

I interrupted him in mid-sentence because the demon king’s dia talk was not over. If time permitted, he would talk for hours.

“And I’ve got the spirits and elves asleep now so we won’t be disturbed. They’ll be up tomorrow morning.”

“Huh?”

It is certainly strange that the Devil King is here, but there’s no response from Yug and Zeal. In fact, there’s no response even if I talk to them. They must really be asleep.

“I have a high opinion of you as a Sis-concerned person. If there’s a contract slot available, I would like to sign it with…….”

“Me?”

“Well, there’s that way………. No, it’s nothing. I thought about signing with you if you had an open contract, but I just thought it was impossible since you haven’t acquired demon magic.”

“Right.”

I didn’t understand what he was saying because he was whispering for the first half of the sentence. I haven’t acquired demon magic, so even if I wanted to make a contract, I couldn’t. And apparently the number of people you can contract with includes spirits. So I’ve already made contracts with two people, so I can’t make contracts with anyone else.

“It’s about time. And there are others on their way here, so I’m leaving.”

“Who’s on their way?”

I feel tired. I’m not ready for a surprise visit, so I’d appreciate it if they’d quit. I mean, isn’t everyone asleep? Is anyone coming here?

“I forgot to mention one thing.”

With his back to me, he turned his back to the space, wong! After creating a black vortex in the space, the Demon Lord looked at me again.

“If you touch my sister, I will kill someone you care about in front of you. After that, I will kill you with all the pain I can inflict on you. Do not ever lay a hand on her, okay?”

“Don’t worry! I will never do that!”

It was terrifying to hear him say such a thing with the scythe pointed at me. For a moment, my crisis high-speed sensing reacted in an impossible way. Probably the highest reaction ever.

” Then later.”

After saying that, the devil king entered the black vortex and left. The vortex disappeared as soon as the demon king entered.

Did he really come just to ask for a favor and give advice…? I mean, the black vortex now is a special ability, right? Is it a spatial type ability? But putting the spirits and elves to sleep is also a special ability, right? I thought he’d have a similar ability to Dia’s reflection because they’re siblings, but it’s not? For that matter, does the Devil King still have more than these abilities?

While I was thinking about that, the door to my room opened with a bang! It opened with a mighty bang.