Chapter 1 : Meeting the STG and first mission

Ichigo and Rukia were on their way to a meeting that the head captain had planned, both were unsure of what was going on but it sounded important. Most of the gathered crowd were also wondering what was going on, finally the Captain-Commander entered into the enormous room his big long white beard in its usual style held together with a hair tie making it look like it was braided taking his seat with his walking stick in front of him and silenced everyone with just an intimidating glare and the bang of his staff. 
Captain-Commander:As many of you know 100 years back we sent the STG on a mission, since then we have had reports that most of the STG have been terminated. Only two have been known to survive. We were able to get them both safely back here into the sereitei.

The group in the room started to talk among themselves, Ichigo just turned to Rukia who was as confused as much as he was. Not many people knew about the STG's mission not many people knew where they came from either.

Ichigo:Old man who are the STG?

Captain-Commander:Ah Substitute Kurosaki of course you would not know who they are, Shinigami Kuchiki can you explain what the STG is.

Rukia:Yes Captain-Commander, Ichigo the SS.STG or STG for short stands for Soul Society. Special Tactics Group they are a group of six of the strongest soul reapers who are here to protect the soul society and hundred years ago they were sent on a mission into Hueco Mundo to defeat the Hollows there. 

Captain-Commander:The two have been through a lot, watching their team mates die in front of them and the two being too weak to even help their team mates. So I suggest we keep distance for a while to let them settle and then begin to talk to them. You are dismissed, apart from you Substitute Shinigami Kurosaki.

Everyone left the meeting room looking at Ichigo as they left, wondering what he had done wrong this time. Rukia left also, but only to stay by the door trying to listen to as much as she could through the door curious about what was going on between the Captain-Commander and the substitute soul reaper.

Captain-Commander:Substitute Shinigami Kurosaki, you have shown how much power you have within you. The STG needs new members now that there are only two, three should service for what they are needed to do. The STG are Soul Securities greatest fighters, without the STG to protect us there would be no Soul Security. All members of the STG are well known to the spirits of all the Soul Society, the STG possess great power, and the two survivors are proof of this. The mission we sent them on was to go to the land of hollows and to destroy them all; with only two that is imposable, but if you were with them then it is possible to complete this mission. There were six members of the STG, now there are two, they were all famous shinigamis. Minakoma Ikuto, the leader, Yumiko Yooko, Matsumoki Mito and Kaylo Kai are dead, Yin Keada and Tasurochi Kemuto managed to survive. How the team died and how those two are still alive is a mystery. When they are back to their normal self's Yin Keada will become your leader, if you pass the challenge. You must first do tasks and then there will be fight challenges, do you understand this?

Ichigo took a moment to take the news in but nodded. He then left to the world of the living with Rukia to go home and sleep.

*The Next Day*

Ichigo woke up and did his usual morning routine then left with Rukia. Once at school they met up with everyone and went to home room. The day went by as usual but Rukia could not shake off the feeling that they were being watched, but when she would turn to where the thing or person could be she would find nothing out of the ordinary. After school Ichigo was called up to the soul society for another meeting.

Captain-Commander: Kurosaki, the STG members are at their normality and would like to meet you right away, Captain Kuchiki will accompany you to STG HQ battle area for introductions and your first test.

Byakuya came in and took Ichigo and Rukia to the STG HQ. It was bigger than they expected, as they looked around they noticed that all around the area was the sky and what they were walking on was natural ground, in front of them was a large white castle like building with 6 pillars 2 of them were white and four were black, only two were lit, the other four were out.

Byakuya: With how many STG members there are, that is how many are lit, Yin-sempai and Kemuto-San were stronger than the others were, that is why they survived in the hollow world. The others must have been defective.

Rukia: The STG are the strongest Soul reapers in the world! There legendary! How can they be defective?

Byakuya: They may be legendary, but if they die, then there not the real legendary people that they are stated to be.*sadly* Yin-sempai taught me a lot when I was a young soul reaper, we would meet up for more Patience. She'd teach me a lot of tricks.

The group walked up to the main gate's which opened on their own after glowing blue. The inside was like the outside, a castle like structure with just white and black. The hall ways were long and narrow, going off in many directions; Byakuya just seemed to walk forward. After what seemed like hours they finally came to a large wooden door.

Byakuya: Behind this door is what many people have not seen, if you, Kurosaki Ichigo, do not complete their tasks, then you and Rukia will be killed. 

The large doors opened to reveal a large white room, with 6 black chairs, in two of the chairs where the outlines of two people. The way they sat hid most of their bodies except the legs and feet. The one sat on the biggest chair in the room giggled to them self.

??? : Kuchiki Byakuya! How nice to see ju again! Iz's been far too long!

Byakuya: I’m not here to catch up... sempai. You know why I'm here.

???: Ja!! Ju are here wiz Kurosaki Ichigo, ja?

Byakuya simply nodded at this, as the person giggled again and turned to their partner sat in the chair next to them.

????: What do ju zhink my lizle minarai?

There partner did nothing and just simply sat in silence, staring at the group.

?????:I'm Yin Keada, new found leader of zhe STG, zhis quite fellow nexz zo me iz Tasurochi Kemuto, my right hand man.

Ichigo: Ye, so.. Is there going to be a written test?

Keada: Nein, *giggle* ze first zesz is.....zo gez an object from somewhere, which is guarded by hollows. Ju musz get past ze hollows... and bring ze box here?