Blue Lock’s Neo Egoist League introduces a variety of global talents who take part in the competitive spectacle organized by Jinpachi Ego. Among these new characters, Michael Kaiser is undoubtedly the most popular and memorable. As the German prodigy, Kaiser plays along with Isagi in the round-robin matches, quick to form a rivalry with the protagonist.
His arrogance, egoism, and superior playing ability make him stick out, and he is personally being nurtured by Noel Noa to evolve. However, behind Kaiser’s mask of superiority, there is an immensely tragic past that has left him scarred and forced him to steel himself.
In the match against Paris X Gen, Kaiser’s spotlight was being stolen by Isagi and Rin, who were displaying their monstrous growth. At that point, Blue Lock finally allowed fans to get a glimpse into his past, and it was more shocking than they could ever imagine.

Kaiser was the child of a theatrical director and a leading actress. Soon after his birth, his mother abandoned his family and soared in popularity, breaking his father’s heart and making him go on a self-destructive spree. Unfortunately, this led to Kaiser becoming the victim of his father’s emotional outbursts.
The young boy faced constant abuse and was forced to steal essentials at his parent’s orders. Even when he fulfilled them faithfully, he was beaten up. Believed to be unwanted in the world, Kaiser’s ego only strengthened under these conditions. As he grew up, he was determined to leave his home and began hiding money from his father.
During his twelfth birthday, Kaiser finally decided to buy himself a present and chose a soccer ball from a store. As he spent more time with his latest possession, Kaiser felt an odd sense of kinship with it, since it would not rebel against his frustrations, whether it was kicked or punched, and would always return to him.
Unfortunately, even this small source of happiness was nearly taken away from Kaiser one day, as he was framed for a robbery of a jewelry store that his friend had committed. When the police came to his house to arrest him, his father began raging and beating his son up yet again. He only became more unstable once the officers revealed that Kaiser had been storing money secretly.
Just as Kaiser decided to give up and start over, his father discovered his soccer ball and attempted to break it, believing there was money inside it too. This was Kaiser’s last straw, as he snapped and beat up his father as well as the police officers. He felt that was the moment his identity was born, as he finally started expressing his feelings.
Following this, when Kaiser was placed in jail, the president of PIFA, Ray Dark, approached him. After questioning whether the boy liked soccer, he recruited him to take the Pro Exam and join Bastard Munchen in Blue Lock.
How did Michael Kaiser’s past shape him in Blue Lock?
Right after he started his career as a sportsman, Kaiser was surrounded by bright and friendly people, unlike what he had been accustomed to. Rather than trying to change, however, he decided to live as a hateful person who would be the target of malice.
Kaiser’s life up till that point was one where he was constantly denied his existence, and to prove his place in the world, he trained relentlessly to dominate against his opponents. He came up with his signature shot, the Kaiser Impact, manipulated Ness, and made anyone who faced him feel true despair.

Hence, Kaiser’s personality and his aim to become the world’s best are a result of his desire to push others down, something he has inherited from his father’s actions. This is what drives him forward even when he is completely beaten, and the reason Noel Noa acknowledges his potential.
As a result, in Blue Lock's Paris X Gen match, even as he was being left behind, Kaiser pushed through to unlock a new level and help carry his team to victory.