As Rias and her peerage were finishing off the stray devils in the warehouse when suddenly Issei was shot by an unknown source
Rias and her peerage: Issei!!
As they go to protect Issei, they see the figure who shot Issei a person in a armour with a word on it's visor saying rider
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Koneko: The word on it's visor says rider and the symbol on it's forehead says Kamen
Rias: Who are you and what are you doing here!
Then a mysterious man comes out of the shadows and says
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???: Rejoice! The one to inherit all the demons, devils, angels, fallen angels and dragons powers, the demon king of time who will rule over the past and the future! His name is Kamen Rider Zi-O!
Rias: The demon king of time, Kamen rider Zi-o (saying shocked)
Issei: I don't care who he is, your friend just shot me!
Boosted gear!
As Issei said that, he starts charging at him but Zi-o puts his Zikan Girade in the mysterious man's hand and Zi-o charges his energy into his fist and does a split punching Issei in the family jewels
(Like this)
This causes Issei to squeals in pain from the punch, putting him down. Next Koneko comes in to attack but is grabbed by the shirt by Zi-o as he pulls out a ridewatch getting Koneko's power and throws Koneko back and absorbs the ridewatch into him and everyone in the warehouse start to hear a mysterious voice
???: Sweet, Savoury flavour chocolate and untainted strength and defence, Koneko, armour time!
As the mysterious voice finishes Zi-o gets armour that has two chocolate bars on his shoulders, white hair and cat ears and all of the peerage and Rias are in shock on what they see but Zi-o starts to move and hits Koneko with a punch to the face sending her flying back into the wall.
Kiba: Koneko!!
Seeing this angers Kiba and starts running at Zi-o with his sword but Zi-o grabs his Zikan Girade and puts it into it's sword form and starts having a duel with Kiba and once Zi-o gets the upper hand on Kiba, he pulls out a ridewatch and gets Kiba's powers also and absorbs it and getting armour that has two swords on the shoulders, blond hair and a steel chest but it increase Zi-o's speed and knocking him out. Sensing the power of rider, Rias summons a portal to her and her peerage out from the mysterious boy.
Rias pov
After sensing the power of this "Kamen rider Zi-o", I was afraid and stunned by his strength and put all my peerage members to bed and went to my room thinking about who he is
Rias: Zi-o, who ever you are you would be a exceptional member of my peerage
3rd pov
Back with Zi-o we see him taking the stray devils powers, killing it and going home to de-transform revealing a boy with short but long hair, wearing a coat that has a hoodie, jeans, a long-sleeved shirt, big boots while holding a book and having a bunny clip on his hair talking to the mysterious man
???: So you are telling me, Woz that you woke me up just to fight someone that has red hair and who also has a team with her which are all devils
Woz: That is correct my king
Shinnosuke: You do know I am starting school tomorrow and also just call me Shinnosuke when we are alone or in public and call me Zi-o or Lord when meeting the devils or anything except human
Woz: Forgive me my lor- I mean Shinnosuke but why do you have to go to school even though you are way smarter than basically everyone?
Shinnosuke: It is an important part in a teenager's life and also I'm getting bored staying at home every day so just go to sleep
Woz: I see, thankyou for telling me this and also goodnight Shinnosuke
As Woz leaves, Shinnosuke starts to think about the school he is going to
