Drawing back the curtain.

As Issei rebooted, he thought of Sona's offer. There was a lot he could do, but a memory of a perverted day-dream came back to him. Sona, Tsubaki, Rias, and Akeno all on their knees in front of him in just lingerie. Having sex with even one of those 4 used to be a dream. But now? He could have all 4 at once and make them beg for more.

'But why do it all at once?' At this random thought, Issei stopped. 'That's right!' He thought 'I can have everyone in the school, I nearly do already. Why rush for the finish line when I can stop and savor the many delights, starting with the student council.'

"Yes Sona-chan, there is something you can do to make me happy. I would like for you, actually the entire student council, to go and get changed into some sexy harem outfits"

At this Sona and the rest of the student council nodded. Then blue colored circles manifested under their feet from nowhere, and then they vanished.

Issei stood there, dumbfounded. 'How did 7 people just vanish into thin air!' He boggled at how the girls had just done such a feat.

They came back a minute later, dressed in sheer harem outfits, the top a golden bra that fit snugly against each of their breasts. The bottom was a golden pair of panties, with a front piece of fabric hanging in front of their crotch, and a back piece over the butt, both going down to just above the ankle and leaving 2 slits to show off their legs. Golden bracers covered their upper forearms, and a golden neck piece with a golden chain hung from their necks.

They smiled as they returned. At Issei's silence, Sona spoke, energetic and joyful in a way Issei had never even thought possible.

"Hello Issei-sama, is this to your specifications? It was a bit of a rush job, I apologize for not having such a thing ready. I will se-"

"What! You just vanished then only needed a minute to make and get changed into professional level fetish play outfits! How did you do that! I would be very happy if you explained what is going on to me, Sona."

At the mention of being happy Sona lights up. Issei smiles clearly liking how willing Sona is to do anything if he merely says it will make him happy.

"Oh well you see..."

As Sona explains the supernatural to Issei, his eyes go wide at the possibilities now open to him. Cat girls, succubi, and more are all real and available for him to fuck. However he realizes that is for later. After all, how can he ignore such a bounty as the one gathered before him?