Hey there, back with this story and having fun while making it. I mean its already the longest Demon Slayer x High School DxD fic on the website and I am proud of that, seeing Tanjiro be adapted with this world has been a joy. Well let's see what happens now.

At the Second-Year class.

Tanjiro soon walked to his class and casually he greeted everyone.

"Good morning everyone.'' Said Tanjiro with a smile.

"Morning Tanjiro-kun.'' Said the students of the class, but mostly the female ones.

Tanjiro didn't notice that he was become super popular around Kuoh Academy. Why wouldn't he? He was handsome, strong, had a cool scar and a beautiful smile. Plus he was super adorable around the girls which made them like him even more.

While Tanjiro was talking with some classmates he noticed a new person in the room.

"Huh?'' Asked Tanjiro confused.

The demon slayer went to see who it was as the newcomer was also speaking with the classroom.

"So you are from Italy?'' Asked a classmate to the new student Asia Argento.

"Yes, but I learned Japanese from my church.'' Said her.

"Well I gotta say your Japanese is really good.'' Said a student.

"If need help with some homework don't hesitate to ask.'' Said another classmate.

"Oh thanks.'' Said Asia with a smile.

While Asia speak with some people she soon saw the red haired scared boy froma few days ago.

"Asia?''

"Tanjiro.''

The two locked eyes as soon they hug each other.

"Asia!''

"Tanjiro!''

"I can't believe it you are here in Kuoh Academy.''

"Me too, I had some…complications in the church and I ended up becoming a studnert here.'' Said her.

"That's great and…'' Said Tanjiro as he sniffed the air.

Sniff Sniff

The new smell confused Tanjiro. Last time he meet up with Asia she smelled like flower and some different type of fragrance, but now it was that weird dead like smell.

"Her smell is different. Just like Rias-chan, Issei and Koneko-chan. What is happening?'' Thought Tanjiro.

"Tanjiro-kun are you ok?'' Asked Asia.

Tanjiro didn't know but he felt a huge difference on Asia presence, not like she was hostile but in a sense that she wasn't innocent either.

"Asia what happened to you? I can definitely say that you are different.'' Said Tanjiro all serious.

The question got Asia by surprise, being a nun she was always told to not lie and even with her new life she was still having a difficult time in keeping this huge secret in check.

"Uh…'' Said Asia a bit nervous as a new voice appeared.

"Oh hey Asia, you are already here!'' Said Issei arriving in the classroom.

"Issei! You know Asia?'' Asked Tanjiro.

"Well Tanjiro you are not the only one who knows the ladies, I helped Asia with…some stuff. Is everything going ok with you two?'' Asked Issei.

Issei didn't get the feeling of a bad sensation, Tanjiro felt that there was no evil coming out but he knew there was something being kept a secret.

"I am no longer a nun Tanjiro-kun.'' Said Asia.

"Oh really, what happened? You seemed that you love to be a nun.'' Said Tanjiro.

"Yes but…'' Said Asia but Tanjiro cut her off.

"Yes! You see the priest who called Asia was a total fake and when we tried to contact the real church they told us that she wasn't in their registers. That led them to not consider Asia a member anymore.'' Said Issei with a excuse.

"Well, that's horrible, I could try to talk with these church people to let Asia back.'' Said Tanjiro but Issei kept cutting him.

"Thanks man but its really really hard, I mean buchou took 8 hours of talking with them. Those guys are not easy.'' Said Issei trying really hard to continue.

"We can discuss it later.'' Said Tanjiro.

"Sure, that would be lovely.'' Said Asia.

"Uh Asia, remember if we have that thing after school.'' Said Issei.

"What…oh yes.'' Said Asia remembering it was her first meeting as a devil.

Tanjiro didn't know what was happening but he felt the intensity on the atmosphere.

"Something wrong?'' Asked Tanjiro.

"Its stuff related to the ORC club, sorry Tanjiro its kind confidential to us.'' Said Issei.

"I see, I hope you two can resolve that.'' Said Tanjiro.

"Well that's for sure, also how are your things on the swimming team?'' Asked Issei.

"I am learning to swim way differently than I usually did, Anya-sama is giving me a lot of training.'' Said Tanjiro.

"Well we can hop on the pool a day or another in the future, in the meantime let's keep things in check.'' Said Issei.

"Understood, good luck Asia.'' Said Tanjiro.

"Thanks.'' Said her.

As Tanjiro went to his seat Issei whispered to Asia the situation.

"He doesn't know about devils so you will have to lie.'' Said Issei.

"What but he is my friend.'' Said her.

"I know it sucks but trust me it's for the better.'' Whispered Issei.

Tanjiro just sat on his desk as he wonders what was going on with Asia, she felt a lot different from before and he wanted to know the reason.

"She is hiding something serious.'' Thought Tanjiro.

Later

At the Armed Detective Agency

Tanjiro rushed to the agency, hoping that nothing bad has happened while he was away.

"What happened! Is everyone ok?' Asked Tanjiro.

"Well if it isn't our little Vigilante.'' Said Dazai with a smirk as he and the other members were on their desk just looking at Tanjiro.

"What?'' Asked Tanjiro confused.

"Where were you yesterday, Tanjiro Kamado?'' Asked Dazai.

Dazai expected a full game of lies to be displayed here, Tanjiro trying to not leave any tracks of where he was in the previous night but instead the opposite happened.

"I was in the abandoned church where I encountered weird people in robes, and I fought creatures with black wings called Fallen Angels.'' Said Tanjiro surprising the detectives.

"Wow! He was straight ahead and told us the truth! That's a new one!'' Said Kunikida impressed.

"I don't like this way, its less fun.'' Said Dazai annoyed.

"Our job is not to have fun!'' Scream Kunikida.

"I don't understand…what is happening?'' Asked Tanjiro.

"You went to a supernatural battle unauthorized. That was beyond dangerous.' Said Kunikida.

"I was just passing by and saw some conflicts. Should I just have ignored?'' Asked Tanjiro.

"Did you got spotted by civilians?' Asked Ranpo.

"No, no civilian got injured.'' Said Tanjiro.

The detectives all looked at each other a bit serious first but then they had a look of relax in the next.

"Well that's great Tanjiro-kun, keep up the good work.'' Said Fukuzawa.

"I am not in trouble?'' Asked Tanjiro.

"No, but next time you should call for back up while dealing with a situation like that. We just got there after the responsible escaped.'' Said Akiko.

"Oh really?'' Asked Tanjiro.

"But sometimes else has been bothering our mind.'' Said Kunikida.

"Why is the port Mafia eyeing you?'' Asked Dazai.

Tanjiro looked at them confused, he didn't know what thye were talking about.

"Tanjiro-kun are you a rat?'' Asked Dazai with a smirk.

"No, I am not!'' Said Tanjiro all serious.

Dazai just look intensity at him and then after a few seconds lets out a little smile.

"Well he is not a traitor, I can guarantee that.'' Said Dazai with a smirk.

"Really mister Dazai. You could have given him a heart attack.'' Said Atsushi.

"I know and this is a intense way to know if he is loyal or not.'' Said Dazai all calm.

"Why are you always like this?'' Asked Atsushi.

"You are asking the guy who tries to commit suicide multiple times why he is not good in the head?'' Asked Kenji.

"What would the port mafia be eyeing me? I mean did I do something that upset them?'' Asked Tanjiro.

"Kid, do you have your sword with you?'' Asked Fukuzawa.

Tanjiro nodded as he took his nichiri blade to show. The detectives just from a far distance could sense power coming from that blade and they couldn't tell if it was a Sacred Gear or what.

"Your sword is seem dangerous to them, maybe they want to destroy it or have to themslev. If you want we can put it in the most secure safe vault in the entire country and we will put people life in order to defend it.'' Said Fukuzawa.

The offer sounded too good to be true, but Tanjiro wasn't going to let anyone separate his balde from him.

"I promise to always wield my sword. Its my duty and I vow that I took. I am sorry but I cant just let you have it.'' Said Tanjiro all serious.

"Well, I am glad that you said that because I am going to force it.'' Said Fukuzawa.

"Is the guy who made this someone really close to you or what?' 'Asked Dazai.

"No, he tried to kill me when a scratched it.'' Said Tanjiro.

The detectives just blinked in surprise at that, if you had a blade you would of course cause a lot of scratches on it, so to the guy who made it go mad over that it means something.

"I hope I never meet this guy.'' Said Atsushi.

"Yeah me too.'' Said Junichirou.

Dazai just laughed out loud and he felt that things were just getting even more interesting.

"Man, you must had a one of a kind life before going to Kuoh.'' Said Dazai.

"I had but is not something I am proud of it.'' Said Tanjiro thinking of all the hardships that he passed through the years.

"Sorry for making you go there kid, how about you go home early today huh? We will inform you if there is a huge amount of garbage to be disposed of.'' Said Dazai.

"But what about the Port Mafia?'' Asked Tanjiro.

"Don't worry, if they try to attack you we will be there Tanjiro. After all I am not going to let those people take advantage of such a weapon.'' Said Dazai all serious.

The detectives all had a look of sympathy and sincerely towards Tanjiro. Despite only knowing these people for a few weeks he grew to like them, he wished he could see them more often but he was busy with a lot of other things and his quest to get back home.

Meanwhile

At the Orc

Rias heard from Issei that Tanjiro asked too many questions when reuniting with Asia, if he wasn't there she could have spelled the beans about her devil transformation. She had to admit that Tanjiro was getting involved where he shouldn't have been, but she wasn't going to wipe his mind because of that.

"Tanjiro-kun is gentle but he is not ready for this world of chaos that I live in.'' Thoguht her with a sad nod as she thinks of the gentle boy who she had grown to appreciate.

Hey everyone, yes I have to say this is a rush chapter because I wrote the idea over 1 month ago and messed up what I had to write next since I didn't took many notes. What can you do? I am finally free from my main obligation, and I want to write as much as possible before going back to work and this is one of the main ones.

The stuff with the detectives were nice and I had them be a little presence in Tanjiro life in Kuoh, nothing much.

We are getting near Riser and I have so many plans! Thanks for reading it.