A few months has passed since you've became a fallen angel to be with Raynare and you've quickly rose your rankings this scared the Great devil King Lucifer and the other great factions
-In the underworld-
Lucifer: This isn't good a few months ago he was a Demon in my sis-
Serafall: In your sisters Peerage?
Lucifer: But I don't know how he could've been a fallen angel maybe he's been a spy all this time, if he ever knew the truth of what he is and what he power he possess
???: Or maybe it was never like that at all
You came out of nowhere and froze everyone else besides Sirzech
(Y/n): The all so mighty Devil king
Sirzech: You shouldn't be here your kind isn't allo-
(Y/n): My kind if you don't remember your younger sister has a fallen angel in her peerage. Don't start on my Kind, I just came to warn you to keep your sister and her little pawn to stay out of my way or if she doesn't...
A thin black aura surrounded you and your eyes flowed red
(Y/n): The Crimsoned haired Princess of Ruin's blood is on your hands
Sirzech was scared he could feel your power from where he was standing and it was even greater than his given how long you've been a half devil and fallen angel. And with that you disappeared leaving black feathers and a terrified devil king and the time resumed
-TimeSkip-
-With Rias and the others-
Rias: Okay you are the Red dragon emperor now all you have to do is conjure your sacred gear think of the part of your body where you feel the most strongest then focus hard on the strength
Issei: Wait what?! Now this is kinda a lot of pressure
Rias: it'll be easier if you focus
Issei: Alright. Focus Focus Focus Focu- Ahhh
Rias: Good concentrate you can do this
Akeno: Good Issei
Issei: I think I can I think I can. Ughh I'm trying!! Focus Agh I'm a weak soul
Rias: You are not weak it's just a little hard and frustrating right now
Issei: 'Uh Yeah it's hard the only thing I can focus on is that your thong is see through' I'll have to try again tomorrow
With that Issei took off and rode his bike home but when he left Akeno's expression changed even though she used you she did miss you, and the attention you gave her, the dates, everything she felt guilty and wanted you back
Akeno Remembers when she was hurt and beaten against a Rouge devil but you stood there and protected her even if the devil was stronger than you. She was now trying to fight her tears from falling from her eyes.
Akeno: 'I-I'm so sorry (Y/n) I never should've...Why did I go along with it to get rid of you..'
-With Issei-
He was riding down the hill trying to get home then all of a sudden a light spear cane at him
Issei: Ah!
He fell over and got up and he looked up to see 2 fallen angels
Raynare: He's seriously the red dragon emperor every time I see him it's just disgusting
Issei: Raynare! I should Kill you!!
He ran up and kicked Punched Raynare when she wasn't looking, then Issei got kicked in the back of his head By a fallen angel that looks like this
Issei: Who the hell are you?!
Issei went to punch the fallen angel but failed and got kicked into the wall
???: Acero got it memorized
And he smirked, then you came out of nowhere
(Y/n): Would you look at that
You grabbed Issei by his hair and held him up then You dropped him
Issei tried to look up but when he did he got kicked across the jaw by you
Issei: Agh!
You grabbed his face and kneed him again
Then you just kicked him around for a while then you stopped on his face with his face all bloody
(Y/n): You know personally nothing instills discipline like pain and what you need is to be taught lesson and right now your in perfect kicking position..
You started kicking him again for a little while longer
Acero: Wait (Y/n)
(Y/n): What is it
Acero: It's dangerous what if he gets angry and transforms
(Y/n): He can't even summon his sacred gear let along control the power he has
You crouched down to his face pulled his head up
(Y/n): He's not fit to be the Red dragon emperor, he's a joke
And you dropped him again in the corner of your eye you a saw help come for Issei
(Y/n): Let's go
Then all three of them disappeared leaving black feathers next to Issei, when Rias got there she was worried about Issei and saw he was hurt badly
Rias: Issei?! Issei what happened talk to me
Koneko: It was Fallen Angels
Kiba: But who?
Issei: R-Rias...
Rias: What is it Issei
Issei: (Y-Y/n) Is alive he did this..
Everyone's eyes widened in shock
Akeno & Rias: W-What