After Sirzechs Lucifer and his queen Grayfia Lucifer arrived at the room Arthur (Alter) meant, the three of them entered the room and waited for Serafall Leviathan and her sister Sona Sitri. Arthur (Alter) just sat tilting his body back and while closing his eyes for a while, Sirzechs who saw him felt a little curious about the change in his attitude which sometimes friendly and friendly can turn into firm and authoritative very well even, Sirzechs might not be able to do as fast as Arthur's age ( Alter), Sirzechs was only able to do things like Arthur (Alter) after months of training. But Arthur (Alter) actually managed to do that even more so when he was furious at Issei who didn't realize that many wanted my sweet sister because of her body and status.
After waiting for Serafall Leviathan and her sister Sona Sitri to this room. Finally they both came and that's when Arthur (Alter) opened his eyes then stood up and spoke.
Arthur (Alter): Thank you for agreeing to come here Sona Sitri-san, and I also thank Serafall-sama for allowing her sister to talk to me.
Sirzechs, Grayfia, Serafall, and even Sona couldn't believe this. Riser Phenex a.k.a Arthur Pendragon (Alter) thanked and saluted Sona too because of that action, the four devils couldn't believe what had happened in this space. Then Arthur (Alter) sat down again and started to show his serious expression to the three devils who were sitting and one demon standing in a maid outfit
Arthur (Alter): I asked the four of you to come to this room to discuss the matter of having the territory taken care of by my fiancé and his younger brother Sirzechs-sama.
Sona : Like I said before Rias and I have been around for quite a while... -
Arthur (Alter) raised his palm up to order Sona to stop talking while staring very intently at Sona, Sona, who felt Arthur's (Alter) sharp and intimidating gaze, began to feel uncomfortable and a little afraid of Arthur's (Alter) intimidating gaze. ). Serafall Leviathan saw what Arthur (Alter) was doing, why did his sister make him so angry at Arthur (Alter), Serafall released a killing aura and his great demonic energy towards Arthur (Alter) then said.
Serafall: How dare you lowly bugs stare at my little sister Serafall Leviathan will tell you where you are WHERE IS RISER PHENEX!!!!
Serafall released her enormous demonic energy to tell Arthur (Alter) never to disturb her beloved sister! Sona felt a little embarrassed by her sister's words but also felt happy because her brother was worried about her, Grayfia could also understand Serafall's feelings if someone insulted her husband and was sure if Arthur (Alter) was frightened by Serafall's aura, "giving off killing aura and demonic energy is too much, it's true that we should teach him to respect, but not scare them" was what Sirzechs thought and started to tell Serafall.
Sirzechs : I know you're angry because Riser is looking at your sister with intimidation, but that doesn't mean you have to put out this much killing aura and demonic energy.
Serafall: Why not Sirz-chan I want him to know the consequences of daring to glare at my sister with those dirty eyes of yours.
Arthur (Alter): If you think the killing aura and heavy demonic energy is enough to make me fearful fine then that's how you negotiate.
Arthur (Alter) snapped his fingers on his right hand, the dense demonic energy concentrated in his body made the entire mansion suffer a devastating impact due to the dense demonic energy. Sona and Grayfia also suffered bad effects, Sona experienced vomiting blood and shortness of breath while what Grayfia experienced was like her body was being pressed/pulled by a very strong gravity while experiencing vomiting blood. Except for Sirzechs and Serafall who didn't suffer any harm from the energy because they were Maou-class devils so they didn't suffer from it.
Sirzechs: Grayfia!!
Serafall: Sona-tan!!
Arthur (Alter): I intend to negotiate in a good way, but like Seragall-sama and his beloved sister Sona don't like to negotiate in a good way, right Sirzechs Lucifer-SAMA!?
Sirzechs : Serafall Leviathan apologize to Riser Phenex for your overreacting.
Serafall: But I just..... -
Sirzechs : I understand what you're trying to say, but look at the current situation if you don't apologize all the devils in this place will die!
Serafall: Mmm..., well, it's all my fault, so please forgive me for overdoing it, Riser Phenex. So can you get rid of that demonic energy of yours! I ask!
Arthur (Alter) snapped his fingers again and the dense demonic energy disappeared from the mansion but even though it had disappeared the impact was still there like the low class devils all fainted unconscious, the middle class devils felt nauseous, and the high class devils felt dizzy in their heads. Everyone was starting to panic a bit but Ajuka Beelzebub calmed everyone down, then the Gremory lord approached Ajuka even though his head was still feeling dizzy while whispering.
Zeoticus: 'You must know who emits that much demonic energy?'
Ajuka : 'The one who emitted enormous demonic energy just now is your son-in-law Lord Gremory-sama'
Zeoticus: 'What, are you sure it's Riser Phenex that released that much demonic energy!?'
Ajuka: 'I'm sure because I did a search where demonic energy was coming out and it was coming out of Riser, as proof I also sensed Sirzechs and Serafall's demonic energy there.
Lord Gremory Zeoticus was surprised by what Ajuka Beelzebub said, but at the same time felt happy because his daughter-in-law had great power. There was someone else who heard Zeoticus Gremory and Ajuka Beelzebub's conversation. She was Rias Gremory, who overheard her father and her older brother's friends talking. Return to the room where Arthur (Alter), Sirzechs, and Serafall are.
Arthur (Alter): Alright I accept that, and also I want to apologize to both of you. I could have done it in a better and less harmful way, but as you can see if I didn't do this you would just keep interrupting the conversation.
Sirzechs : It's fine I will definitely do the same thing you did if something like this happened to me.
Arthur (Alter): Since we've wasted so much time I'll get straight to the point. I will allow Rias to return to the human world and continue her education until she graduates from college.
Sirzechs : Are you serious? Come in, are you sure about this Riser?
Sona: You're not kidding aren't you because if you were I would.... -
Arthur (Alter): Do I look like I'm not kidding right now. Sona Sitri!
Sona : ....no.
Arthur (Alter): But I have a new condition I can allow it.
Sona: Wait why...-
Arthur (Alter): I'm only asking 2 for conditions how Sirzechs-sama.
Sona : Sirzechs-sama don't..... -
Sirzechs : What are the two conditions?
Sona: SIRZECHS-SAMA!!!
Serafall : Stop it Sona-tan.
Sona : But.... -
Serafall: Enough Sona Sitri!
Arthur (Alter): My first condition is that the Gremory residence in the human world will stay until Rias graduates from college.
Sirzechs : Alright then I can talk to father and what is your second condition?
Arthur (Alter): My second condition is... -
Time Skip: The human world
[POV 3]
Kuoh Academy where the number of female students outnumber the male students, in class 2-B Issei sat on his chair in an unenthusiastic state, Matsuda and Motohama tried to comfort their best friend by saying.
Motohama: Issei I brought this DVD for the three of us to watch after school so get excited.
Matsuda: That's right Issei I'll also give you the VIP spot I found.
Issei: Sorry....but....I...didn't...follow....just yet..
Motohama : What's wrong with you since you've been pensive for the past two days!
Mastuda: What Motohama said was true even though you spent a week having fun with your stingy club members.
Katase: Obviously Issei is still in a pensive state.
Murayama: At least one pervert problem has disappeared so there are only two left.
Asia: Katase, Murayama aren't you guys teasing my Issei too much?
Murayama and Katase: NO!!
Aika: I think he's down because of the rumours!
Murayama: Rumors.....?
Katase: Just what kind of rumors could make that pervert Issei like that.
Motohama: Yeah, Kiriyuu what rumors could make our friends like this!
Aika : I'm not sure it's 100% true but it seems there is a rumor that Rias Gremory senpai is already engaged.
All students in class: Eh....!
Katase: Are you kidding Aika there's no way that's true!
All students in class: RIGHT!!!
Aika: I also don't believe in this rumor myself but that's what seniors talk about
The classroom door opened and a teacher told all students to sit down. The teacher started talking "everyone with you for a moment today is a new student in this class" all the students started to guess who the new student was and "ok please come in" the teacher told the new student to enter the class and all the students were surprised by the new student the students the girls screamed hysterically and the boys fell silent, except Asia who was shocked while covering her mouth. Issei started looking at the new student and was shocked and angry as he shouted "YOU...WHAT ARE YOU DOING HERE!!!" he shouted and stood up pointing to the new student. And that new student appointed by Issei is our MC Arthur Pendragon Alter.