Issei just as predicted by his father knew that Kuoh Academy would become a co-ed school and he applied and was accepted as part of the newly introduced male section of the school body and he just like one other in the school was chiseled to perfection, his hair a dirty blond color a perfect mix of black, brown and blond and his body quite muscular but he decided to not expose his perverted side when at school but saved it for at home or elsewhere when it was appropriate. The same Issei who Katase knew, now at sixteen years of age, a second year at best was a step higher than Katase. He walked past Katase without saying anything but she looked at him from behind noticing him supressing his perversion not looking at other girls and shedding his friendship with Matsuda and Motohama, the perverted triumvirate was shattered and it was now just those two. After the first day being two lockers over from Kiba, the other pretty boy and prince of the school, he had gotten nine letters, likely from girls, a razor blade which likely came from a guy that was jelous and a strange note...from the ORC.

That day he started on his way home and he was stopped by a girl named Yuma Amano and Issei could tell what she was. "Will you be you boyfriend?" she asked "Stop trying to trick me fallen...as fun as that would be...I can see through you." said Issei who then predicted her next moves and countered before the light spear could hit him and he had her in a perfect arm bar, and the Fallen Angel was in pain having already changed back to her true form. "Come on...you are better than that Fallen...considering what you seem to be capable of, would you like to join the future peerage of Vinea?" asked Issei he had moved her to a location where they wouldnt be interrupted and he let her go while she held her right shoulder which came close to being dislocated "What? Why would I turn my back on the fallen and join you?" asked the fallen angel "Because obviously you are not doing this on the behalf of Azazel...if you were, I imagine he would have sent someone to capture me or make a deal rather than trick me and use my heart. What is your name?" asked Issei "Raynaire." she said while wincing from the pain. "Tell me...Raynaire why think of something so linear as killing me? Wouldn't I be of more value if Azazel had a connection to an up and coming devil noble, especially because of my sacred gear?" Issei asked. He approached her and she put her guard up but he put his hands up and continues his approach slowly and uses the healing magic he learned from his mother...she felt warm and the pain faded quickly. "Well?" asked Issei and in response she grabbed him and put herself on his lap and put her head next to his and said "I yield to you, but I wont join...do you really think your gear will get Azazels atention?" "Yes...you want his attention, not mine...then I will assist but you must cease attacking those with sacred gears...is there anyone else?" asked Issei and she nodded and tol him of the four others she detected sacred gears within.

The day before he had detected two main devil signitures, one from the student council room and another while crossing the main courtyard...he had detected a similar signiture from the student council president so that crossed who she is off the list but now who she is...friend...or foe...and he had to persuade a fallen angel which he succeeded in...but what came next? "Issei! Issei! Hey are you ignoring me?" asked Katase "I am not ignoring you, I am just on the move...it seems the ORC would like to see me...dont you have Kendo today?" asked Issei and she nodded but got in front of him.

"I do but...I have a confession to make..." said Katase she walked closer and put her hand on his chest and she noticed how warm he was. "Issei...I know what you are doing. You are holding your perversion back...is it because..." Katase trailed off "Its because, I need to start acting like an adult...like the head of my house...if I keep myself down then I will be uh, dammit please dont tell anyone what I said. Its a secret so please dont expose me." said Issei "I wont but you will have to explain that." Katase said and Issei looked down and saw his sacred gear...it was exposed and he covered it up quickly. He grabbed her and used a teleportation circle, they ended up at his house and Jiro opened the door and shook his head while face palming. "You just had to go and do it." said Jiro "Well she saw my sacred gear so what was I supposed to do?" said Issei "Wipe her memory of the interraction and move on...oh wait I havent taught you that yet." said Jiro "Mr. Hyoudou!?" said Katase "I will explain it to her, you have things to do correct?" said Jiro and Issei nodded and began opening the letters and read the note from the ORC, he will be excused from class during the day and come to the club escorted by no one better than Kiba...but he noticed something else she gave him a summoning circle with the note and it confirmed his suspicion, the second one is Gremory...the Heiress of Gremory, Rias. But it still left one other question mark who was the other one? He left it for another time and went into the living room where Jiro was explaining the supernatural world to Katase...he wouldnt do that...unless? No she couldnt Issei thought to himself but then he looked again...she indeed had a sacred gear but it was not activated, nor was it awakened.

"I would normally wipe your mind of this interraction but I have something else in mind, considering your relation with my son and the dormant power inside you." said Jiro

"You have a sacred gear inside you." said Issei "What?" asked Katase and she seemed scared and panicked, her mind moving a thousand miles a second with what was said. Issei moved in, taking advantage and kissed her on the lips, she reciprocated the kiss, tongues twisting and fighting for control and Issei eventually won and stooped the kiss. "I think I am going to excuse myself, you have a lot to tell her." said Jiro and Issei and Katase were panting over the kiss. "So you did like me that way..." said Issei "why didnt you tell me?" "I...I didnt know how to tell you." Katase started with tears going down her face while blushing and Issei used a napkin and wiped away her tears. "Well...since you know...well, everything now...I have a set choices for you...you can have your mind wiped and you will forget everything up to that kiss and this following conversation or...become part of my future peerage, I have to return to the underworld first but once we have returned and I have gotten my evil pieces...will you join me?" asked Issei "I...I will join you!" and she jumped on him continuing the kiss and Issei did not disappoint and also reciprocated the kiss, it turned into Issei moving her back to his room and turned into sex.

(Incoming Lemon)

Issei set her down on his bed and she starts undressing, first the shirt and then her undershirt, Issei doing the same and he saw her bra and smirked "Purple suits you Katase." said Issei and she undid her skirt while he undid his pants and having a look at it all, she was wearing lingerie...the bra included. "Were you hoping it would go down like this?" asked Issei and she nodded "Your naughtier than I am...I like that." said Issei and he started at her breasts while she managed and started working on Isseis manhood smiling at him while he sucked on her breast and eventually he came and she tried to immediatly go for penetrstion but Issei turned it around and got to work on her lower entrance and just as easily made her climax as well and then went for penetration. "I will let you chose Katase...face to face or..." Issei started and she interrupted saying: "Do me while I face you...I want to- ahhh!" Issei interrupted her and penetrated her while she lay with her back on the bed and started to move, at first slowly to get her comfortable with the movement and then a little faster but remaining gentle to not hurt her if he could help it. "Issei...I'm going to-" Katase started and Issei said: "I know, me too...I'm coming!" and he climaxed insider her while she also climaxed and he removed himself from her and lied down next to her. "You are lucky that today was a safe day." Katase said and Issei retorted saying: "Well, we demons don't have a high repopulation rate so I don't think you will have to worry about it." "Good, cause I want another round." Issei liked her before but he liked her even more because of how rugged she was.

(End of lemon)

Issei woke up the next day and he expected to be alone but when he woke up he noticed something...a tail...no two tails that were dark as night and he threw off the covers to see Kuroka was sleeping on him who woke up at the sudden movement from Issei. "I heard you made a move on that girl from when you were younger...did she accept?" asked Kuroka and Issei nodded with a smile on his face and he got out of bed to get his clothes on to go to school. When he left the house it was different this time...Katase was waiting for him at his front gate. "You didnt have to wait for me," said Issei "our houses are in two different directions from the school." "I waited for you because I want to walk to school with you...I feel like we need to talk more about last night." said Katase and Issei said "I actually was wondering as well..." he stops walking "should you be considered my girlfriend? Or is this a special relationship...?" Issei asked and Katase came in front of him and kissed him on the lips, standing on the tips of her toes because of how tall he was in comparison to her and when she was done grabbed his arm and hugged it to her chest. "I would like to be your girlfriend...if your fine with that." said Katase "More than fine with it." said Issei grabbing her chin and swooping down in a kiss with Katase, he would get all sorts of rumors around him at school because of it from Matsuda and Motohama who witnessed the two of them kissing.

"Ughhhh...I dont need any more rumors being spread about me." said an overwhelmed Issei who was walking towards the ORC and as he approached he noticed the girl with red hair sitting in the window. That must be the Gremory heiress... he thought to himself but he didnt pay her any attention and continued to advance up the steps. He reached the main room following Kiba and went into the clubroom. "I have brought him as you requested." said Kiba and Rias looked over and smiled "Issei Hyoudou, I have brought you today for a special reason." she said and she also said the exact same thing he said to Katase, explaining the underworld and what she is, Issei faked being suprised and it seemed to work, at the end of the day he rejected becoming one of her peerage members but when Issei left he continued listening in, she sent the cat to watch him, and track him back to his house he quickly made a call to Raynaire and she agreed with the plan as it also coincided with her objectives as well. "I am going to make a fake version of me, I have programmed it to fall for your advances, follow your original plan and kill it where we first met." said Issei and Raynaire agreed and did as she was told and Issei dissapeared back to his house using a teleportation circle. The news came back as quickly as he thought, she is definitely punctual and news was spread quite quickly the next day that he had died the day before and it proved what he thought. He went to Katases house and she was crying...he could tell as he got closer and he knocked and the door was answered quickly by Katase and she was at first angry but then let it go and hugged Issei. "I enacted a plan that I thought would work. She fell for it indeed Katase, now come with me to school early we are going to talk to the Gremory about what she did.

While on the walk approaching the school Kuroka and Raynaire joined up with him and he nodded no to Katase and told her he would explain it later. They all walked to the school and it was still early but he could feel it, they were indeed gathered in that old schoolhouse and Issei supressing his power approached silently and entered the schoolhouse and the clubroom. "Gremory, I am disappointed in your methods." said Issei as he opened the door. "What? But I saw you die! And I saw you kill him! And what is an S class criminal doing here?" said Rias, looking around the other Nekomata was calm and he put two and two together and figured it out...black and white, ying and yang he easily found Kurokas sister but it seemed that Kuroka was keeping herself composed and Issei retorted holding his hand out to tell his friends to not intervene "I was testing you, I intended for my house to return to the side of the devils and you failed...perhaps the other one will figure it out before you do and earn the glory. An alliance with the warrior house of the dark horse would have been an advantage for you. Kuroka is here of her own volition and as one of my allies, however your rook needs to cool her emotions towards her sister, hatred is like a timebomb and this is goodbye, for now." and Issei left with his allies in tow and he also knew that the student council would be in since they have morning duties but this time he let his aura flare out, and it indeed caught the other heiress' attention since he noticed she was now watching him. "Katase you can stay, Kuroka go home and notify my father of the Gremeory heiress' failure, Raynaire you can stay or go, but I recomend you leave since the student council president isnt as relaxed on the trigger as Rias Gremory is." Issei said and both of them understood and left. He went to the student council president room and he knew she was waiting for him. "Come in, I know you are out there." said Sona and Issei did as he was told knowing better than to piss off the Citri heiress "Do you know who I am?" asked Issei and he smiled "The dark horse...I have only heard the stories...are you the last of your clan?" asked Sona and Issei nodded "I have tested the two of you, your ally and friend the Gremory has failed my test...as soon as she saw my clone get killed she assumed I was dead, and even sent out news saying I had died. You only worked on your current set of information you were given and furthermore stayed out of the mess that the Gremory made." said Issei "Yes, though she is somewhat experienced the methods she used should be embarrassing to her family name...will you expose her?" Sona asked "No, it was a test and to the victor," he slid her a sigil piece and she caught it "go the spoils of war." and she saw it as an approval from Issei to be the one to bring him and his family's name back to existence.

Issei was at school normally as usual today and at the beginning he was swarmed by a bunch of fellow students asking about what happened and why he wasnt dead. He answered and gave them a single answer, there was no proof and he wasn't anywhere near there at that time of day and that he was out with his grilfriend Katase. The second part caught everyones attention and everyone questioned it and at the same time Katase had came out and grabbed Isseis hand...and it had proved what he had just said. "Rias...what did you do?" Sona asked Rias and she answered "I tried to get him to join my peerage...I figured he would join and also if he died I could revive him and use him and his sacred gear to earn my freedom from Riser." her head was in her hands and showed obvious regret. "He is of the warrior caste in terms of his family name. He would have worked but the methods were a little over the top." said Sona and Rias didnt know what to say. "I will return him and his father to the underworld, he has claimed four people plus two other outsiders, dont go for them. We leave tonight." said Sona and she left.

"Yeah I'm fine, no need to get so touchy ah Student Council President Citori!" said Issei and he broke free and went to her side "What time did you want to do the meet up for my study session?" asked Issei and Sona caught on to his meaning and responded "Meet up at your house and get prepared immediatly we will be starting immediately after you get home." said Sona and Issei accepted and went back to class. The rest of the day was as expected but he knew he was still being watched and went home, Katase following him inside, not a moment too soon Jiro and Isseis mother had prepped to go, and Sona and her peerage and Rias without hers came by a teleportation circle. "Are you ready?" asked Sona and Issei nodded yes "Katase...go home and wait for me there, as soon as its done I will come to you first." he said to her and kissed her and then separated and led her to the door and she left. "Lets go." said Jiro and they were moved in an instant to the underworld.

(Underworld)

"Haa, its been a while since I have smelled that sweet underworld air." said Jiro "Mother...Im home..." said Isseis mother and Issei was suprised by how the underworld looked...the sky was a different color...quite disorienting for someone who was raised on the surface. "Where do we go?" asked issei and Sona guided him the direction he was supposed to go by hand then as his eyes adjusted he needed help less and less as they got to their destination. "SirZechs, you have a visitor." said Grayfia and Sona, her peerage, Rias and Issei and his father entered. "Whats this about?" asked SirZechs and Issei, Jiro and Isseis mother stepped forward and knelt before the current lucifer king "Zechs, it is I, Jiro Vinea, my family branch was believed to have been killed during the war, I am now returning to your service my lord." Jiro said and Issei was a little nervous, he had felt power before but SirZechs Lucifer was on a totally different level. "Jiro...why did you go missing?" asked Zechs and Jiro answered: "I was disoriented and my magic was sealed away when fighting another devil, they threw me into the dimensional gap and I only escaped because of my wifes help, she is a lower class demon but she is a pureblood like I am. If I may be so bold...would you accept me back into your service?" "I do, I need my warriors back...I also need a good instructor for the new bloods...I accept you not as a guard but as a training officer." said SirZechs "Thank you my lord, but also my son...I have raised and trained him and he will not make the same mistakes I made...he is an honorable and masterful warrior, and I will settle for being on my own...but would you grant my son evil pieces?" asked Jiro and Zechs laughed since he had not been spoke to in such a way for a long time and he accepted and they all got up from their bowing position.

"So the Vinea family returns, this is good news!" said SirZechs Lucifer and he and Jiro hugged like they were buddies. "But it still seems like you've got a stick up your arse Jiro." "Well, old habits die hard. But still I imagine some of my old students are still alive and kicking." said Jiro and SirZechs smiled and snapped his fingers and thirty guardsmen came in. "Commander Vinea!?" said one of the knights and he broke formation and removed his helm revealing a bald man with a mustache looking like one you would see on a police officer during the 80s and 90s "Its Mac, do you remember me commander?" and Jiro took a second and then remembered, Issei paid it no attention as SirZechs walked in front of him and put his hands on his shoulders, Isseis gun was at his side since he was carrying it and Zechs noticed the weapon. "Peculiar sacred gear you have there...I thought only humans could manifest one." said Zechs "I didnt manifest it, it was connected to me by blood, the bloodline the flows through my mother and I allows me to use this gun. It is a good gun but I know that what is within has not awakened yet besides it claiming me as its new partner." said Issei and SirZechs motioned for him to follow and Grayfia also followed in tow, Isseis mother just found somewhere to sit and was happy knowing that she had made it home, Jiro was with his fellow knights and he was training them, but with Issei he had been dragged off to a seperate room and he was sent to one room in specific...his fathers old room in it he had a look...the closet contained multiple sets of clothes and a set of armor was on a stand behind him but then he detected something...the chestplate...its not normal and he touched it and the entire set was changed...the chestplate was a poncho and it had a design with dark horses all over it, the helmet and lower body armor sections had disappeared and became part of the poncho.

It was definitely not normal and he put it on...he could sense something...a horse...as corny as it was there was a horse he could summon at a moments notice. "Cool isnt it?" asked SirZechs and Issei didnt know what to say, Issei looked around and he saw something else...a chess set. "Good you have seen it. Your father entrusted you with his evil pieces...however those are quite old are you sure you want those? I could replace them." said SirZechs "I...I will keep this set." said Issei, he had noticed something in the pieces they were all Mutation class evil pieces...an extremely rare thing was to have a full set of mutated evil pieces, it was practically impossible but that was the case. "I...I have something to do SirZechs...would you excuse me?" asked Issei and SirZechs let him do what he needed to do and sent himself back to the real world and he first went to Katases house like he had promised, with his new duds on none the less.

He knocked and Katases mother opened the door and invited him inside and Issei asked about Katase and she had made it home safely and he went up to her room and she was at her desk listening to music and doing school work. He snuck in behind her quietly and put his hands on her shoulders. "I'm back...moment of truth...the promise I made, are you sure you want it?" asked Issei and she answered saying: "Yes." and Issei kissed her and then asked her to lay on the bed and relax herself and he removed a piece from the box on his waist...a knight... "Katase...will you be my Knight?" asked Issei "Yes." she answered. When he got the answer he read the instructions SirZechs had given him and he followed them to the letter and her body absorbed the piece as it went into her body and she fell asleep and Issei left after covering her up with the blanket at the foot of her bed, Issei left and thanked Katases family for their hospitality and when he left they checked on Katase and she was sleeping with a smile on her face, they knew he was making her happy. Issei went back to his house and met up with Kuroka "What was your piece in your old masters peerage?" "I dont remember...its been a while since I thought about it and he only ever used me for experiments...no rating games...no awards ceremonies, nothing." said Kuroka "Then how about making you a Bishop or Queen, you are extremely powerful and it is a mix of martial arts and magic as well as specialized arts...so a queen should do it." said Issei and he grabbed the piece from its special slot and set it on the table. Kuroka understood and undid her dress and lied with her back to the floor, he put the piece where it needed to be and recited the same incantation, it worked as well and she also passed out and when Issei felt her head...it felt feverish...very hot and so he carried her in a princess/bridal carry and put her in his bed gently. He was finished and decided to head back to the underworld whe he was stopped by Raynaire.

"Hey Raynaire, is there something wrong?" Issei said and Raynaire dragged him back inside the house. "If I changed my mind...would you still accept me?" she asked and Issei was caught off guard by this and wondered what happened. "What brought this about?" he asked "Azazel is doing research on the sacred gears you asked me not to kill the users for...he isnt acknowledging the work I am putting in for him...I even found the Red Dragon Emperor and his partner...and he still hasn't said anything." she said "Are you absolutely sure about what you are asking? Once you fall that far, there is no going back understood?" asked Issei and she nodded "I have a suggestion then, stay here for the night and think it over, Kuroka and Katase are out cold because of their massive surges in power they are unlocking, so you wont be bothered by anyone except my parents when they come home." said Issei and she nodded and he let her in and he left for the Underworld.