Devil Pov:

Devil: "MY LORD.....LORD RISER BIG BIG NEWS."

Riser: "Tell Riser right now what is it?"

Devil: "I found out Rias and she seems to be sleeping with someone. Here sir."

I hand him a photo of the woman that saw me and seems Riser is enjoying what he likes.

Riser: "Good job Riser is happy now you may leave Riser's sight now."

Riser Pov:

As the lowly devil leaves my sight, I look at the woman that was with Rias, and might I say she has a body that can rival most people. Even rivaling Rias, herself alright time to make my move. Riser always gets what he wants.

Y/n Pov:

As I was laying with Rias next to me, she was cute she was she was having such lovely dreams. I enter her dreams and see her well. Having a fun time with someone.

(Lemon scene)

I was watching her getting some love. She was being eaten out by a dream version of me, my dream self, puts her fingers into her V area. She was playing with it, opening it wide while using her thumb putting it some other hole. My dream self-stops for a moment and starts to flick with Rias breasts. She moans and yelps a few times like a cute kitty. She was doing her best to hold her moans in. She was more red than her hair as her face gave it away, her nipples were played with as my dream-self puts her thumbs in them and pulls them out. Every time I see that I think of the pop you do with your mouth sometimes. Rias wanted to suck on my breasts so badly, like she was a baby. Dream me did so and in the process dream me keeps fingering her. Until she climaxes. 

(Lemon over)

Y/n: "I feel honored to know you have such feelings towards me. But sorry dear time to wake up."

Rias: "Wait this was a dream?"

I snap my fingers and we got out of her dream. She yawns all cute like until she noticed me again.

Rias: "Ho-Ho-how much did you see~"

She says in an embarrassment tone.

Y/n: "Yes."

She put her face into her hands and was so embarrassed now. I get up and started to head for the shower.

Y/n: "Rias dear if I remember correctly, you must be going to a camp right. If so you and the other must get ready, I want time to myself. And let me know when you win dear. But I don't get a word from you or someone else, I will make sure I come and see the events."

She nods and gets up, and hug's me tightly as she tries to give me a kiss on my cheek as she tries. A white hand comes between us as I giggle.

Y/n: "No no dear, not yet."

Rias: "Aw...Hey Y/n can I ask you a question what's with those hands why are they with you so much?"

Y/n: "That's a good question, and I have answer towards it. Rias hands tell us something we don't know much about. It shows only violence and anger. But it can show love and happiness, and these hands are from the people I have killed, I killed so many you can count to 50x's of earth's population."

Rias: "How?"

Y/n: "I killed so many easy dear, where I came from, I was not human I was something called differently but enough about me dear."

Rias: "But?"

The hand comes out from behind her keeps her mouth shut.

Y/n: "Dear don't bring it up it's something I don't and hate talking about. Not my best moments but it's better if we leave it as it is."

As I walk away from her and went to take a shower striping down. I was thinking about that day when I had to face the master of Chaldea, a powerful and yet weak master. Even with his servants help, he still had problems. I could have won if it was not for that A.I and king of heroes.

Few minutes later:

I turn off the shower as I got ready and changed, I saw a note on my bed from Rias and her friends telling me they headed out which was nice. It seems I was lost in thought about the past, I won't forgive that A.I or that king. But that's in the past now time to look forward to what I like most. Watching TV. I went on Disney+ I was watching Obi-wan good show, loved every moment of it. As I was watching TV someone knocks on my door. I got up and went to the door and open to find someone strange.

???: "Hello name is Riser and Riser would lov-"

I slam the door in front of him. As I was walking away from him, he burns my doors down. I look over and was somewhat annoyed.

Riser: "Don't ignore Riser, Riser want's you part of his harem and adding you to my peerage will be quite the taste."

Y/n: "No."

Riser: "WHAT YOU MEAN NO YOU HUMAN NOBODY SAY'S NO TO THE GREAT RISER."

Y/n: "I just did what you going to cry and try to force yourself onto or something. And if you did it will be a cute joke. I'm not a normal human you know."

As white hands come from the ground grabbing the poor little sad excuse of a devil.

Y/n: "Tell me Chick fil a why did you want me. I know your weakness and those hands are only using devil magic at the moment. If I thought of it those hands can and will be holy hands. Hurting a poor sad excuse of a devil."

Riser: "Riser does not kiss and tell."

As he said such words the hands start to burn him as the hands added holy magic to their touch. He screams in pain as one of the hands picks him up by the hair.

Y/n: "I won't touch you I won't say much I won't do much but do this shit again......I might have to let go a bit."

As the hand's let him go he was scared of me he got up but was badly hurt from the hands.

Riser: "Riser will take you as his own, but Rias is my main target, so you best hope we don't meet again."

I smile and snaped my fingers as I did, he was no longer there.

Y/n: "Man I love illusions underrated magic use. Now I have to wait the best I can do is either grade papers or watch TV nah I need to get food for myself."

As I left my home, I went to get some coffee it was nice. I got to enjoy the sunlight and enjoy the site of the small town, it was small, but it was a good a nice city. I liked it not as good as Serpah but it was nice for how human it was. I grab my coffee and when I left, I look behind me and saw people going to a maid cafe, but I just got my coffee, I walked away until I heard someone.

Maid: "I quite those pigs keep on trying to touch me when they should not. And how the hell are they still in your shop."

Manager: "Trust me I'm trying to find out as well."

I look into the maid cafe, as I did I spot a few lower rank devils. I went over to the manger and maid.

Y/n: "Sorry I couldn't stop myself, but I am cop can you lead me too the people who keep on assaulting you."

Manager: "You don't look like a cop?"

Y/n: "Because this was my day off if need be here you go."

As I dig in my purse for a badge a badge I just made in my bag and show them.

Manager: "Hm alright please kick them out I don't know how they are doing this they keep coming back. No matter what we did we even file lawsuits and yet they get away with it."

I know why they are devils even devils can mess with others even at a low ranking. They've been using magic to trick others and get away with it. And sense they been tricking others with magic I will also do the same to them as well.

Y/n: "Hey manager let me be the maid for them okay. Don't worry about anything I got many ideals for them."

Manager: "Sure but with um...Your size it's we don't have your size."

Y/n: "It's perfect it will show much of my assets."

I went into the back and when I did, I put on the maid outfit.

I went to their table and pretended to be a new girl.

Y/n: "H-Hi name is-Ki-Kiara."

Have not used that name in a long time but this was my job to stop anything trying to disturb this town's peace.

Devil 1: "Hey hottie why not sit with us."

As they drool over me and with such lustful looks and they wanted to do so much to me it was dumb of them. I click my teeth together as I did so, the whole shop was stop everyone but us.

Devil 2: "What the hell this is some high-ranking magic right here."

Y/n: "I don't know what's going on."

Devil 3: "Wait whoever brought us here must want this bombshell we got to stop this monster."

They went outside and when they did, they fell apart atom by atom. I snap my fingers and when I did everything was back to normal and the manager saw them leaving. I did use illusion magic to think something else went down. So he saw them leaving and saw me pull my badge out. And they left like the wind.

Manager: "Thank you so much thank you thank you."

Y/n: "No problem anyways got to go home now until then."

They wave me bye and when I made it home everything was going back to normal. A few days went by and when they did. I got a note from Rias that she lost, I was kind of surprised she lost.

Grayfia: "Hello Miss, Sessyoin may I have a word with you if that is okay."

I nod towards her.

Grayfia: "Sorry but it seems you have at least 50 types of protective magical barriers it was not easy getting in." 

Y/n: "No you could not get in it's more like I allowed it. And it seems maids are my lucky toy of the day. And 50 is a small number if I wanted to keep you out you would have died getting near the 1st barrier. Anyways it seems my sweet little red head lost and let me guess. Issei tried to fight him not to long ago and lost?"

Grayfia: "How did you-"

Y/n: "Your hot and sexy I won't lie but I know everything dear, I can do anything you can do but better and stronger than your own magic."

Grayfia: "I see, anyways Sirzechs Rias's older brother would love to see his sister safe can you please save her."

Y/n: "I was going to rather I was invited or not."

Rias Pov:

Issei was trying to beat Riser, usually Riser is not this strong he mange to beat Issei, but how did he do it.

Riser: "Riser was hoping for a real fight but it seems that you managed to make it easier for me to have Rias. And show the whole underworld that you are nothing."

As he beats Issei to a bloody pool, he was killing him I was about jump down there when a white hand comes from Issei's shadow dragging my poor dragon away from the fight.

Riser: "Riser wants to know what kind of magic was that."

Y/n:" Easy dear I was keeping one of my own students safe from a bully. A teacher must always protect their students no matter what. Now let's fight shall we."

Riser: "RISER DEMANDS AN ANSWER."

Sirzechs: "I will answer your question Riser, I want to know how you got this power where did you get and what did you do to get it answer me now, I've heard of this woman's power can rival most devils here and even my own. I don't won't to admit to it but what I say is true where did you get said power."

Y/n our awesome teacher is here to save us from this asshole. I was shedding tears of joy.

Y/n: "Hey Sirzechs I know what he has but I will answer it later let me rip him apart."

As a grin crosses over my teacher's face.

Riser: "Fine then I will show you what kind of power I got and destroy you with this newfound power I got."

Y/n Pov:

As he starts with a giant fire ball and in that moment a giant hand appears out of the ground and throws the fire ball away from me. It was easy to get rid of a small ember I made a spear of darkness from my own shadow, it show's off dark like liquid, he tries again, but this time summons fire spears, as he throws them at me. They become smaller and smaller to me.

Riser: "RISER MUST KNOW HOW ARE YOU DOING THIS."

Y/n: "Easy dear I drain the magic out of them, you have to get pass at least 10 barriers of drain magic, and that's not including the other 80 other types of magic. The reason why I wanted to ball with the ember is because it's so fun to tease."

I throw the spear at him he moves to the left a bit dodging it just barley.

Riser: "HA RISER WILL MAKE YOU HIS PLAYTHING AND I WILL WIN HAHAHAHAHAHAHA."

Y/n: "Try it little man for your already stab."

As I said that a spear of darkness stabs him in the chest.

Riser: "WHAT *COUGHS* HOW?!"

Y/n: "Easy dear dark magic and sense this was made by shadows it can come back as long as I say so. From any shadow and it could have been easy win's I could have used your shadow to stab you in the back. Yes you are in the sky but there is darkness everywhere. And now enjoy no more magic."

Riser: "Wait what."

As he falls to the area, he tries to get up, but he can't I used my hands of light to grab him as they did, they rip him apart. Looking for something I know he has, and it was the thing I was looking for a demon god's eye. I use my own hands to rip out the eye from his body. Blood was on my hands blood all over the area Riser was alive but only for a few seconds. As I walk away, everyone was freak out by the power I showed them. Be glad it was only a warmup.

Y/n: "Now Rias's brother I will be leaving for a while and hope for the best and Rias dear have fun with your freedom."

As she tries to run to me, but I teleported away. Into my house knowing a demon god is coming. But the question is which one, Amon? No Bael maybe not sure but I got to look more into this shit. These bastards want to ruin my new life I will make them know not to mess with me foolish demon's.

??? Pov:

It seems Y/n has noticed it now I got to hurry before she spots me or even faces me last time, we did so it was not a good fight. I grab my wand and make a heart towards Y/n and smile and say these words.

???: "Here~I~come~Y/n♥"

(Been a hot min I know I've been thinking what would be a good plot or who would be a fun villain for y/n and I got the perfect one which was you know who if you know what the heart means a bit. But anyways look forward to more of strange teacher again sorry it took so long. As I said plot, and who would be a good villain for y/n and we got them anyways talk later omage1 out peace.)