Anyway, Aizawa's story begins here. Aizawa was the lead singer of "ASK", NG's newest addition. Along with Ken-chan and Ma-kun, his former band mates, his band was expected to be, and was becoming very popular. That is, until Bad Luck, who was supposed to be their opening act, upstaged them at their own concert(along with a little bit of help from Ryuichi Sakuma that is).

While Ma-kun and Ken-chan could forgive and forget after such an embarassment, Aizawa could not, and he began to see Bad Luck as a threat as opposed to just another rival band. He was apalled that a "second rate" band such as Bad Luck would even dream of surpassing ASK. In a rage after seeing Bad Luck perform under very stressful and unusual situations on a quiz show, Aizawa began to plot. It seemed that his jealousy and pride had won him over.

One day, he ran into Shuichi out in town, and decided to fully execute the plan that had been forming in his mind since Bad Luck's appearance on "Quiz Depot". Seeing that Shuichi was being mobbed by seemingly rabid fangirls over an article about he and Yuki being lovers, Aizawa decided to "help" him, by pulling him off into a secluded area. Aizawa reminded Shuichi to wear sunglasses when he went out in public, to help disguise himself. Shuichi thanked him, however, Aizawa himself was so "disguised" that Shuichi didn't recognize him. After asking him who he was, Aizawa shouted out that he was Shuichi's sempai, Aizawa Tach from ASK. Hearing this, the fangirls returned, and Aizawa dragged Shuichi to his apartment.

Shuichi proceeded to bare his soul to Aizawa, drinking all the while. He thanked Aizawa for being such a good friend, telling him that he was glad that they could make up. At that moment, it seemed that his opinion of Aizawa had completely changed. That was, until Aizawa was satisfied that Shuichi was thoroughly drunk. Snapping his fingers, the door to the room swung open, and three crazy looking men entered the room. At once, Shuichi knew that something was up, but it was too late. Aizawa had seen to that.

The next thing we see, is Shuichi in a darkened parking garage, two men holding his arms, another punching him in the stomach and putting his hand up Shuichi's shirt as Aizawa watched with a satisfied grin on his face. Hoping that Shuichi will take Yuki down with him, Aizawa asks him if he would protect the one who had hurt him (Yuki and Shuichi were in one of their lovers quarrels at the time). Shuichi refused, and was about to collapse when Aizawa pulled out a camera, photographing as the men beat and raped him.

His plan, was to ruin Bad Luck by giving the photos to the media. He dumped Shuichi off in front of Hiro's house, leaving him defeated and beaten to within an inch of his life in the rain.

Aizawa's plan was put to a stop by Yuki, who shortly after he discovered what had happened, went to ASK's "headquarters". He proceeded to beat Ma-kun to a bloody pulp, and then, retrieve the roll of film from a very frightened Aizawa.

The last time we see Aizawa, he has just left Yuki's apartment after threatening him. He meets a very frightening looking Tohma on the street. Tohma tells him that he has just ruined his career. He asks him somaething to the effect of "why", and Tohma responds with; "You will pay for laying your hands on the one that I love the most in this world." Shortly after, Tohma bids him "sayonara", and pushes him in front of an oncoming car. The car manages to stop just in time, leaving Aizawa huddled in the road, shaking violently. He is never heard from again.