Opening the hatch that lead me to the support class room, I landed safely and managed to not make a single sound.

Now where do I look for the material?

Starting to look around I saw some sewing machines, electronic equipment and other stuff.

This is like paradise! I feel like today is my birthday!

Might as well sew it here before I go!

Roaming around the classroom and opening every single cabinet I found, I finally saw the materials I would need for my costume.

Don't mind me helping myself!

I took them out, went to the machines, and began sewing my costume. Thanks to this I was finished by 4 a.m.. 

Finally done! It's perfect!

All I had to do now was quickly leaving. I took my new costume and cleaned the work place up before I went back into the vent system venting to Nezu's office.

Once there I took, out a pen and a paper and wrote a note for him.

I feel guilty getting my costume this way but I do need one and this material is the best!

Hello Nezu!

I am sorry for breaking in! I needed a new costume and I am completely broke! Stealing is not really my thing but considering that I just trespassed into the probably most secure place on earth in order to get my hands on some material, I wanted to let you know that it wasn't that hard get into this place. I suggest upgrading the security measurements!

The material I took, were not for free! I never take without giving something in return. All I can offer is information about anything you seek to know and is in my reach to get! I also analyze people. In the separate paper are detail analyses of your hero class students and what they could do to improve!

I hope we do play another game of chess this week. I do enjoy them a lot and I do feel like one game a week is too little!

Meanwhile enjoy the tea I prepared!

Yours sincerely Siren :)

Then I turned on the computer and worked for an hour until 5 a.m. on doing a small quirk analyses of each student in Aizawas class.

Looking at the clock, I could tell that Nezu would be here any minute. I brought a special surprise with me. It was a tea mixture. The ingredients for it were handpicked by me and I do drink it sometimes to calm my nerves down. Since I knew that the chimera loves his tea, I thought I might as well leave a present when stealing something from him. I took a teacup from besides his desk and brew it, so that it was waiting for him when he arrives.

I do hope you like it!

This should do the trick.

I then quickly got into the vent system and began exiting the school. The moment I was outside and in a tree, I saw no other enter the school ground then Nezu himself.

That is a close call!

I waited until he passed me and then jumped from tree over the huge fence and bolted away!

Nezu's POV:

It was a fairly normal day. I went to my office and there I saw something that I did not expect. A pile of paper was waiting for me and a cup of tea. It was still warm.

Interesting!

Who might my uninvited guest be?

I looked at the paper and saw a note for me.

Ah Siren!

.

.

.

That I hope too my dear friend. You are an excellent opponent! Though I hope we could play it face to face in my office one day.

I then looked at each personal file from my students.

This is such detailed work! If the detective didn't tell me that he had a mental quirk then I would have guessed that it was either an analyzing quirk or an intelligent one.

This was brilliant work. I couldn't just dismiss it. Something this valuable and detailed came from a vigilante that from what I can tell was around the age 11 to 14. The tea he brew was also smelling delicious. I took a sip and it was the best tea I ever drank.

Now I need to find the little genius!

I turned on my PC and looked at the security footage only to see no trace of Siren.

He is better than I thought! I do need to upgrade the security system if he managed to get in and not leave any trances!

As I was thinking about he could have entered I saw from the corner of my eyes that Aizawa and the other teacher arrived. It was currently 7 a.m. and school was not to begin for another hour.

Me (using the comm system): Aizawa, Yamada please come to my office!

After 10 minutes both heroes entered my office.

Me: Aizawa please have a look at these!

I placed the paper down from my paws for him to take. He took it hesitantly. Then he began flipping through all the 20 pages in a rather quick manner. His eyes widen in disbelieve.

Aizawa: Where did you get them?

Me: Siren visited us last night. This is the note he left me.

Present Mic: So that's where he went after your little encounter Sho!

Aizawa: Looks like it... How did he manage to enter?

Me: Don't know!

Present Mic: You don't know?!

Me: That's what I said. Siren didn't left any trace.

Aizawa: Can I see the note?

Me: Sure, here.

He took the note from me.

Present Mic: A new costume in exchange for information.

Aizawa: That doesn't sound bad.

Me: He also included the papers of your students in it.

Present Mic: Let me have a look to Sho!

Aizawa passed the papers to Present Mic while we both were discussing the vigilante mater further.

Me: I know I already said it but I want to have a meeting with Siren and I also want him to attend UA at any costs! Your dear husband said that you met him yesterday, right? Did you gave him an invitation?

Aizawa: No, it slipped my mind.

Present Mic: Goodness gracious these information are top notch!

Ignoring Mics comment, I wanted to know why my teacher would go and search for a vigilante in his free time. Naturally, I knew that he didn't have any patrol yesterday and seeing as he was tired and lazy, there was no real reason for him to go after Siren.

Normally Azawa would just ignore the vigilante that were not doing anything bad or more crimes then helping. Siren wasn't one of them. Never did something bad besides annoying, informing and putting criminals on a silver table for Tsukauchi.

Me: Then why were you looking for him instead?

Present Mic: Because he knows where my son is.

Me: Your son? Do you mean Shinso? I can't imagine Siren kidnapping someone. After all he was the one brining Shinso to you!

Present Mic: No, I mean my blood related son. 2 days ago, I found out that I had one. His name is Izuku Midoriya and the kid ran away from us. Since then we were searching for him.

Me: I see... Well it says here that he would give us information in exchange of the materials he took. If you want Sirens help then we could ask him. I am sure Siren would love to help you out.

Aizawa: He won't that's the problem.

Me: Elaborate.

Aizawa: He hacked into the Mic's radio channel and gave us a message from Izuku. He said that our son doesn't want to go be with us and found a place he belongs and doesn't wish to abandon it.

Me: I don't see any problems with that.

Present Mic: That wasn't the issue. Sho went out to find him afterward and met him.

Aizawa: He used his quirk on me and commanded me to go back with the knowledge that he would take care of Izuku and that he won't go against his wishes.

Me: That might be a problem unless you can change the vigilantes mind that Midoriya is safer with you guys.

Present Mic: We could try that Sho!

Me: Anyways the next time you see him please give him an invitation to come and visit me. He does make excellent tea. I would like to know how he prepared it!

Aizawa: If there is a next time.

Present Mic: Will do! He will contact us once a week that's what he promised.

Me: Oh is that so?

Aizawa: Yeah that was one of the messages he send me home.

Me: Say I do have a question, I am quite curious about. Didn't you erase his quirk or tried to do it? It would be unlike you to engage him otherwise.

Aizawa: I did have my quirk activated but he was immune to it.

Me: That's new! Very interesting.

Indeed very mysterious even! There is no quirk that is immune to erasure except mutant types but his is a mental one. It should have worked... so why are you immune to it?

The more I was thinking about Siren the more interested I become.

I am looking forward to our next game of chess, my friend!

Me: That's all, you can go back to your work.

With that the heroes went out and left me alone in the room. I was one again looking through the security cameras to see if I didn't miss something but there simply was nothing that could be missed out.