(Y/N is seen meeting Aoba and her Shuuki friends.)
Aoba: Brother? Is that you?
Y/N: Hey sister.
Naon: This is the most handsome man you mentioned, Aoba? (seductively) I can see it now.
Koko: Yay, we finally got to meet Aoba's brother.
Y/N: I never thought you girls would like me.
Aoba: Who wouldn't, onii-chan? You're such a stud.
Naon: Handsome... sexy... cool...
Koko: And you beat those Demon Corps like they were nothing.
Y/N: Heh, and to think I used to be a mere punching bag.
Aoba: You... what?
Y/N: I was poorly treated, and never acknowledged. Then the Thunder Gods came to my aid and made me what I am today.
Naon: Those ugly bitches really deserved to die then. By the way, we heard you have a powerful harem, and... can you let us join?
Y/N: (nods) Sure, I don't mind.
Koko: (excited) YAY!
(Meanwhile with the Thunder Gods, they are seen bringing the governments down.)
Taikyoku: Had enough?
(Some of them still try to fight the Thunder Gods, and pay with their lives. Having no other choice, the remaining female governors kneel and bow before them.)
Governor: We concede...
(Timeskip)
(Taikyoku is seen along with Shikoku, Jouryuu and Naruhime having some fun with Y/N in bed. Taikyoku is riding him like a cowgirl while Shikoku sits on his face and has him lick her. Jouryuu and Naruhime rub their pussies in his arms.)
Taikyoku: (moans) You're so big down here.
Shikoku: And good with your tongue too. (moans) More...
Jouryuu/Naruhime: (moans) His fingers... much better than a vibrator.
(Some minutes later, it's Aoba and her friends' turn to have fun with Y/N. Aoba bounces on his member while Naon has her pussy licked by him, and Koko has him finger her.)
Aoba: (moans) Incredible, onii-chan.
Naon: (moans) More, lick me more.
(They keep doing it for hours.)
(Some days later, Y/N and his harem are enjoying the view of the world which is now their kingdom.)