Hard Times

Kaiser is shown as an arrogant young man who has a superiority complex. He sees everybody around him as merely small-time actor compared to his big-time main role as the star of his world. Though he is arrogant and slyly rude to people he sees as beneath him, he is not unnecessarily rude to his teammates but will put them in their place when they unnecessarily speak out even if it's for his sake. Kaiser enjoys 'erode' his opponents heart in which they sink in despair. He enjoys this 'malice' especially in weak opponents. Even though Kaiser is arrogant and rude, he knows when to control himself around people who are definitively better and superior to him, such as his team leader and the best striker in the world, Noel Noa.

After the match against the Ubers, Kaiser was immensely frustrated when he lost to Isagi a second time. Originally, he joined Bastard Munchen because it was the quickest way to get into Re Al, but now he cannot just leave the Neo Egoist League after losing to Isagi.

Before, Kaiser was a mentally weak person who constantly gave up on things he believed to be impossible. To remind himself to never again to fall into that weak mindset, he got a blue rose tattoo on his neck, which he believes symbolizes the achievement of the impossible. Kaiser believes that the moment people believe things are impossible, they are programmed to give up. Those who sacrifice their talent in exchange for living long and tedious lives are the ones he despises the most.

During the PXG game, Kaiser perceived Isagi was a threat to everything he had ever created. Kaiser sacrificed his emotions and pride to be reduced to zero - a state where he follows the most rational option without the hindrance of his feelings. Kaiser began to involve the Blue Lock players in his plays, passing to Jingo Raichi and Rensuke Kunigami despite not including them in the prior games. After realizing Rin Itoshi was too potent to roam, Kaiser accepts Isagi's contract and partnered up to sell their soul for victories and score the last goal, winning Bastard Munchen the game. However, during the final minutes of the match, Kaiser underestimated Ness' ability to grow, after the latter having performed underwhelmingly earlier, and perceived him as a mere dog which hindered the contract.