Y/n is standing infront of two girls wearing school uniform.

Y/n : "who are you to exactly"

Yukina : "my name is Yukina Himeragi, this is Sayaka Kirasaka we have been sent her to be your observers"

Y/n : "sorry but I'd rather not have two young girls follow me around"

Sayaka : "sorry but you don't really have a choice"

Y/n just sighed and entered the library shortly followed by Yukina and Sayaka, as Y/n headed back to learning spells the girls walked around talking with each other.

Timeskip

Currently sleeping on the floor was Sayaka and Yukina, as they were Y/n was still looking through books with a small ball of light he had learned. As he was reading he stopped and stretched hearing a satisfying crack he then looked at the girls who were shaking because of the cold

Y/n(mind) : "they know I was here and didn't pack anything to keep them warm"

Y/n sighed and stood up, he removed his jacket and placed it over Yukina, he then unpacked a blanket from his bags and placed it over Sayaka after he did he stood back up

Y/n : "sorry its not 5 stars but it will do for the time being"

Y/n the sat down leaning against the wall before falling asleep....

The Next Morning

Y/n was sleeping when the sun light came through a window and hit him in the face, he started to slowly open his eyes, he looked down to see a lthe blanket he had placed over Sayaka was on him, his eyes widen when he left something dig into him from both his left and right sides, he looked to see Yukina asleep with her head digging into his neck on his right and Sayaka doing the same on his left, his eyes widen as he could feel their break on his neck, after getting away from them he headed to side, he sat down despite all that's happened he couldn't get Irina out of his mind.

??? : "and where do you think your going"

Y/n turned to see both Sayaka and Yukina standing there, but when he turned around their eyes widen

Yukina : "are...you crying"

Y/n just turned back around before the girls looked at each other

Yukina : "hey Y/n"

Y/n : "what"

Yukina : "who's Irina"

It suddenly all went quiet not a single sound was heard

Y/n : "how do you know that name"

Sayaka : "you kept saying it in your sleep over and over"

.....

Just then Yukina sat beside Y/n shortly followed by Sayaka

Y/n : "she...was my childhood friend, and my first ever crush, but she had to move away due to her family's work, a few weeks after she left my parents were killed by a drunk driver, hen were crossing a road when my dad suddenly pushed me when I turned I...saw them on the ground not moving I...I didn't know what to do so I screamed, after an ambulance arrived they said that both my parents died on impact, the cops tried getting in contact with relatives to see if I could stay with them but they said it was my fault they died, non of them would take me in...I wasn't even aloud to go to their funeral, after losing my best friend and crush as well as my parents in the matter of weeks I was a wreck, I didn't know what to do anymore I had no one to turn to, after a few years past I found that Irina was back in Kouh, I was so excited I could finally tell her what I felt for her, but when I did confess to her...she rejected me, she had fallen in love with the school pervert Issei Hyoudou a boy that only looks for a girls body, when she said that I felt my world fall apart in front of me, I didn't know what to do the only other person in the world I fell for just rejected me for a pervert that wants nothing more than a girl's body, so I left I didn't know where I was going or for how long, after that I met Potusdod, then Avrora and then you 2"

Y/n turned to see the girls had their heads down

Yukina : "sorry we shouldn't of asked"

Y/n : "it's fine, I'm glad to get it off my chest so thank you both"

After that the girls told Y/n how their parents sold them, as they didn't want them, that they were raised to become a tool for fighting, and earned a hit on the head by Y/n.

Yukina : "what was that for"

Y/n : "every time you both think your just a tool I'll hit you, if your tools for fighting than I wonder what that say about the people that have to train kids to fight their battles, your parents may have sold you but honestly that's their lost you both a strong, brave and pretty cute so it's their lost not your yours"

As Y/n headed to the library he didn't see the girls blush, that's the first time anyone has cared about them...or called them cute.

As the seconds turned to minuets, minuets turned to hours, hours to days and days to weeks, Y/n, Yukina and Sayaka grow closer together so close that both Yukina and Sayaka have to started developing feelings for Y/n, but wouldn't tell him...yet

After a few months had past Y/n along with the girls looked from the top of a cliff down onto Kouh.

Potusdod : "Y/n are you sure your ready for this, they will be there"

Y/n : "yeah I know, but I'll have to face them some time or another"

Just then an explosion was heard they turned to see a large group of people fight a large monster, after walking down to Kouh they notice no humans where around

Y/n : "what's going on here"

Avrora : "it seems the humans have been teleported to another place while this fight is going on"

Yukina : "who are they even fighting"

Before anyone could answer they all heard a roar, after following it Y/n's eyes widen and this didn't go unoticed

Sayaka : "Y/n you ok"

Y/n : "it's them...and Irina"

Both Yukina and Sayaka eyes widen as they looked to see a group fight a large uglyass monster that

(group in fight - Rias, Sona, Sairaorg and Riser with Peerages, The Devils Satan's, Michael and Gabriel, Azazel, Yasaka and Kunou and Team Vali with Ophis)

Y/n, Yukina and Sayaka put on their cloaks and lifted their hoods over their heads before walking to the fight as they did the monster saw them and roar while looking at them

??? : "ROOOAAAAARRRRR"