Highschool DXD - Issei Hyoudou extra gear

(note this will take place after saving Rias from Riser)

It was just another sexy dream thought Issei however there was something different about this one, he was receiving knowledge of an ancient power that God had sealed away from existence.

Once Issei woke up he went and did his usual morning routine, though he noticed that Rias apparently left a bit earlier then he woke up, he would ask her why she didn't wake him up later. When he looked in the mirror after showing he noticed that his left eye was a different color from usual it was now Sapphire, "why the hell is my left eye blue" he asked out loud Nd to ddraig when he suddenly remembered his dream.

(Feel free to add to this, any help is appreciated)