"Ara Emiya-kun," Rias said. "Are you not happy when a beautiful girl like me sleeping with you?"
"...." Emiya couldn't say anything, his face even reddened because of what Rias said.
"Wow, your face has turned red," Rias said. "Even though I was only joking with you a little."
"Senpai your joke isn't funny you know," Emiya said with his face still flushed. "Instead of joking like that can you tell me Senpai, why you are sleeping next to me? And why I can still be alive after I'v been killed because my left chest pierced by the spear of light thrown by that winged man?"
Emiya tried his best to pretend to be Shirou Emiya of this dimension that he replaced. Because if he doesn't pretend Emiya is afraid that he will be suspected of being someone else.
Fortunately he followed Zelretch's advice, to sort out the memory of the body he was use at the moment. So Emiya know now how to talk and how to behave like Shirou Emiya in this world.
"Issei's words about you are indeed right Emiya-kun," Rias said. "Aside from your good behaviour to help others person, you are also a really serious person."
"Dont mind that, quickly explain to me what really happened to me yesterday afternoon!" Emiya said.
"Alright," Rias said. "Before I told you what happen yesterday. Emiya-kun I want to ask you, do you believe in the existence of supernatural beings?"
"Supernatural Beings?" Emiya said. (Of course I believe! Moreover, I was arguably a supernatural creature before in the form of a spirit without a body, but there's no way I said that to her right!) "Are you kidding to me senpai? How could there be such a creature in this world?"
"Hmm, then how come that person who killed you yesterday can make a spear of light from his hand," Rias said. "And why does that person have black wings on his back? Can you explain that Emiya-kun?"
"I can't explain it, Rias-Senpai," Emiya said. "Everything I experienced yesterday afternoon was really strange and absurd."
(Ukkh is really tiring pretending like this but you have to hold on Emiya! So no one can suspect you)
"Then I will answer your question Emiya-kun," Rias said. "The man who killed you yesterday wasn't a human, but a fallen angel and he killed you because you bothered him when he tried to kill Issei yesterday afternoon. "
"Fallen angel?" Emiya said. (Well that's a new thing) "Black-winged creatures originating from Abrahamic mythology?"
"You seem to have knowledge about the supernatural creature Emiya-kun," Rias said. "I really didn't know."
"My father has many books about mythology and legend," Emiya said. "That's why I know a lot about mythology and legends."
"Then it will be easier to explain the matter of my identity to you," Rias said. "Then can you guess my identity?"
Rias body was still naked, but she retracted out a pair of bat wings from the top of her waist.
"What about this Emiya-kun?" Rias asked. "Do you already know the answer after I show you this wing?"
Emiya started to remember about what happened yesterday afternoon when Rias's evil pieces entered his body. At that time he could feel that he had the same wings like Rias on his body.
He then use his advanced structural analysis one more time to scan Rias's body. And in an instant all the personal information about Rias's body such as the size of her chest, stomach and waist, height, and even her power of destruction entered Emiya head.
"Rias-Senpai you are a devil from the devil race," Emiya said. "Black wings that look like bat wings coming out of the back of your body are proof of that."
"Your answer is correct Emiya-kun, I come from the Gremory family, one of the 72 demon pillars in the underworld." Rias said. "And the item I used to save your life yesterday afternoon, changing your body structure to be the same as mine, can you feel it Emiya-kun?"
"You mean right now I'm also a devil like you?" Emiya asked.
"More or less," Replied Rias.
"Hmm, from a human to a devil," Emiya said. "I don't know what to react because right now I know that I'm not a human anymore."
"Your reaction seems pretty flat in my opinion," Rias said. "I can even see that you have accept your changes really well, Emiya-kun."
"Well, what else could I have done," Emiya said. "I'm not someone who likes to exaggerate things, the most important thing is that I'm still live."
"Hmm, I can see, you accept your changes much better than Issei," Rias said. "He really looked surprised when I told him that he was not a human anymore."
"Well, that was sound like that idiot pervert," said Emiya, who was getting memories about Issei from his new body. "By the way Senpai can you tell me what kind of items that made me into a devil just like you?"
"Ah, it's true that I haven't told you the thing I used to save you!" Rias said. "But unfortunately I haven't brought that thing at the moment, how about I show you evil pieces at school break?"
"Oh, okay," Emiya said. "I think that was a right time." (evil pieces she said? That means the words I heard yesterday when she rescuing me are not wrong, evil pieces are items used by the devil race to increase their numbers, I don't know who made those evil pieces but clearly the person who made them must be so genius that they could make objects containing a Heaven Feel element)
"Then I will wait for you at school, Emiya-kun," Rias said while wearing a school uniform that she somehow pulled out of nowhere. "See you later Emiya-kun!"
After finishing wearing her school uniform Rias activates her transportation magic circle and disappears from the room through the magic circle she made.
"Haaah," Emiya said. "Looks like I got a master that as bad as Rin."
Author Note: Support me on my Pa.treon
Pa.treon.com/Raylight25