The next day, Issei woke up later than he normally would. He was a bit concerned about what happened yesterday as he had no clue how he survived. However, a quick look at his surroundings startled him out of his thoughts.
First of all he was naked; not something he usually did. Before regaining his Demonic Yang Rebirth, Chojusen would sleep fully clothed as it had been a habit, so his current birthday suit attire was a bit troublesome. More worrisome than that was that there was actually a naked crimson-haired goddess sleeping next to him.
Chojusen immediately sounded off all the alarms in his mind as he instinctively felt something attracting him towards the girl sleeping before him. It was odd as this attractive force was clearly lust, but he didn't understand why he felt this way. Sure, the girl before him was beautiful perhaps even on the same level as his wives back at home, but he ever felt this lust even towards his wives.
This was not normal and Issei would take caution when dealing with things that could disturb his emotions. Still, he had to admit, the girl in front of him was as close to perfect as he could imagine. She had long red hair, just a touch more crimson than Karin. She had a body that could rival Kaguya; especially her bust. And her eyes were a deeper shade of blue when compared to Ino.
Issei wasn't exactly against these feelings, but before acting on them he had to know just why they appeared in the first place. As Issei observed the crimson-haired beauty before him, the latter started to wake up. For some reason, she acted like the current situation was all in a day's work; no shame was present on her face and she yawned lazily.
Issei just watched her with vigilance. He knew she wasn't an enemy; if she was, he wouldn't have survived yesterday's ordeal. Once she woke up, Issei said "Who are you? And what did you do to me?"
A bit shocked at Issie's complete change in personality, the woman said "You don't know who I am?"
"No, I don't… A couple days ago I lost my memories. Don't tell me you're actually..." Issei thought that perhaps the previous owner of his current body had this woman as a girlfriend. But then he tossed that idea out of his head after think clearly for another second. How could that hopeless pervert have such a world-class beauty by his side?
"Wow, that's… new. I guess when I reincarnated you, I might have messed up your memories. My bad. Anyways, my name is Rias Gremory and I'm your new master."
Chojusen was stunned by her words, he was left speechless for a couple seconds, before he started laughing as if he had heard the world's funniest joke. Him? A servant? That sure was hilarious to think about.
Rias was not too happy with her new pawn. It seemed to him losing his memories and gaining this new personality would make him a bit hard to manipulate. She thought about it for a second and a magic seal manifested in her hand. She said "You don't believe me? How about I prove it?"
She started to use her magic to increase the pressure on the seal, which in turn caused Issei to feel pressure on his body. Issei said "What a joke. You think you can command me with just this small amount of pressure?"
Rias was surprised that her pawn could withstand so much magical pressure, but she didn't want to hurt him. Thus she slowly increased the pressure. Issei had a smug face as she kept increasing the pressure, until a certain limit was crossed and his Fiendgod blood started burning.
For a split second Issei was consumed by his Fiendgod blood and his demonic powers were exaggerated. While under the effects of the Fiendgod form, Issei had black magic energy flames cover his body, his eyes became especially cold and with a tone of complete indifference he said "A mere devil dares to mess with a Fiendgod?"
With the snap of his fingers the seal of control that binded Issei to Rias as a servant, burst into flames and Rias coughed up a bit of blood. Issei reverted back into his normal state, a bit weak from the premature activation of his Fiendgod blood and Rias looked at him with fear in her eyes.
She said "You! Who or what are you?"
"I'm just another random devil~" Issie acted dumb for a second before becoming serious once again. He said "Look I appreciate you reincarnating me into a devil and all, but I don't take kindly to people who think they can command me against my will. Ok?"
Rias just looked at him with fear still in her eyes and said "Fine… but what will you do without my protection? That fallen angel from before almost killed you off, so you have nowhere to go except by my side! Besides, I wasn't planning on commanding you to do anything against your will..."
Issei wasn't exactly sure if she was lying or not, as he still had yet to unseal his Essense Sensing, but she sounded sincere enough. Furthermore, she was right. He needed her protection at least until he could protect himself. Issei extended his hand out for a hand shake and said "Alright, I guess I overreacted a bit as well… How about we make up and I'll be a part of your team or whatever for a little while."
"Really? You mean you will willingly be a part of my set?" Rias was just bluffing earlier about him needing her protection as with the Fiendgod aura he projected, even she would be helpless before him.
"Sure, I mean you did save me. And this is the second time right?"
Issei's sudden reversal made Rias very happy she even hugged him. Issei did his best to not let that lustful feeling get the better of him and enjoyed this naked embrace. As they were still hugging Issei's mom intruded in on their little moment. She was worried about her son as he should have been up and about running around the city by now.
Opening the door to his son's room and seeing him hug a girl while both of them were completely naked caused her to drop her things and stumble backwards. She called out to her husband "Dar-Darling! I-I-Issei! HE HE BROUGHT A GIRL!"
Issei's mom and dad then had a lengthy conversation. Just when they thought their son had changed his ways, they find him up to his usual activities; but with a real girl this time…
Issei and Rias couldn't bother themselves with explaining the situation, so they just calmly put on their clothes and walked down to have breakfast before school. As they did this, Issei asked "Hey Rias, why do I feel so attracted to you? This is very odd for me as it has never happened before."
"Well it could be love? But more likely than that it's just that the very act of me reincarnating you made you see me as your master? Perhaps you have a fetish of loving your master?"
"Mhmm?" Chojusen thought about it and he concluded that it was as she said. It was probably just the fetish thing as he already knew what love felt like, from his experiences with Ino, Karin, and Kaguya. Still, he couldn't get over how commanding this lust felt, even after his Fiendgod persona destroyed the master-servant relationship between himself and Rias.
After getting dressed up, Issei and Rias walked down stairs and they had an awkward breakfast with Issei's parents. Rias was asked a lot of questions and eventually resorted to using her demonic powers to manipulate Issei's parents' memories. She made it so that they believed that she was just a close friend of Issei.
As Issei saw her power, he found it odd that she could use neutral demonic energy as if it were yin energy and he thought about experimenting later.
After breakfast, Issei walked to school with Rias and they had another conversation. Issei said "So what am I supposed to do as a part of your team?"
"Well, you will start off as a low class devil, so I will just give you flyers to distribute later after school."
"Is that the only thing devils do? It seems a bit pointless. Shouldn't we train out demonic powers or something?"
"..." Rias was a bit saddened that her new pawn was already thinking ten steps ahead of her. She said "For now, just train on your own time… I need you to deliver flyers and make contracts to increase my level of influence within my territory. Oh, and come to the Occult Research Club after school to meet the rest of the team."