TV-Series
Description
Kei Kaname is a main character in Oblivion Battery, attending Koteshiki High School where he is a first-year student who later becomes a sophomore. He stands at 172 centimeters tall, throws right-handed, bats left-handed, and wears the number two on his uniform. He has short light brown or blond hair and a distinct mole under his left eye. His birthday is April 15 and his blood type is AB.
Kei is one of the most complex characters in the story due to his psychological condition, which is initially mistaken for amnesia. He actually experiences a dissociative identity disorder with two distinct personalities. The first personality, often referred to as The Fool or The Master by his peers, is his original and dominant nature. This version of Kei is cheerful, goofy, lazy, and sometimes whiny, with a carefree attitude that leads him to prefer video games and snacks over baseball. He frequently makes lewd jokes and non-sequiturs, including a signature gag called Pai-ke that most people do not find amusing. He also has a habit of suddenly shouting random phrases like nipple hair. Despite his silly exterior, this version of Kei is secretly very perceptive about other people's emotions and often offers surprisingly insightful observations without realizing it.
The second personality, called The Strategist, is the persona Kei developed during his time as a baseball prodigy. This version is cool, calculating, charismatic, and extremely strict with both himself and others. He is coldly focused on victory and on developing his childhood friend Haruka Kiyomine into the best pitcher in Japan. The Strategist personality emerged from the immense pressure Kei faced as a genius catcher, and it eventually went dormant when the stress became overwhelming, allowing his original personality to resurface. Those around him interpreted this change as memory loss.
Before his psychological breakdown, Kei was a famous genius catcher known as the Skilled General. He formed a feared battery duo with Haruka Kiyomine that dominated middle school baseball so thoroughly that some opponents quit the sport entirely. Kei had trained obsessively from childhood, logging every detail of his baseball knowledge into what he called his Absolute Notebooks. However, the constant pressure to win, combined with the burden of managing Haruka's exceptional talent, caused Kei to lose the joy of playing baseball. The sport became a duty rather than something fun, and the accumulated stress eventually shattered his psyche, causing his Strategist personality to recede and his original Fool personality to re-emerge. Rather than accepting invitations to prestigious private schools, Kei chose to attend Koteshiki High School because it was close to his home and had many girls, with no intention of continuing baseball.
Initially, Kei wants nothing to do with baseball and rejects the sport entirely. However, Haruka follows him to Koteshiki High School and, along with other talented former rivals who have also gathered at the school, gradually drags Kei back into playing. Over the course of the story, Kei begins to rediscover the fun of baseball through his new teammates and experiences. After losing in his first summer tournament in high school, a significant change occurs when his two personalities begin to communicate internally. The Strategist personality starts teaching the Fool personality about baseball, and Kei sets a new goal for himself to defeat his former genius self and become even better than the Strategist ever was. The two personalities continue to coexist, with the Strategist eventually hoping to disappear once he has passed all his knowledge to the original Kei. Stress, mental fatigue, or even comedic failures can trigger sudden switches between personalities during important moments, though the original Fool personality remains dominant and the Strategist cannot act against his will.
Even without his memories or the Strategist personality active, Kei's body retains the physical skills he developed through years of intense training. His natural instincts allow him to make skilled plays at the catcher position and hit effectively without consciously understanding why. He consistently bats third in the lineup, just as he did in middle school. When the Strategist personality is present, Kei becomes a baseball mastermind capable of reading opponents perfectly, calling precise games, and making brilliant tactical decisions. Using his old Absolute Notebooks and guidance from his Strategist self, Kei rapidly regains his elite-level skills. He was known for his extreme training regimen, which included running for an hour daily and performing five hundred swings, as well as strictly monitoring his food intake.
Kei's most significant relationship is with Haruka Kiyomine, his childhood friend and the ace pitcher who forms the battery with him. Haruka remained stoic and devoted to baseball even after Kei changed, and he was instrumental in dragging Kei back into the sport. Their bond extends beyond baseball, and they slowly rebuild their friendship as Kei progresses. Haruka later comes to realize that the pressure of managing his exceptional talent contributed to Kei's breakdown, leading to feelings of guilt.
Other important relationships include Shunpei Chihaya and Aoi Todo, both former rivals from middle school who became Kei's teammates at Koteshiki. Chihaya likes to tease the Fool version of Kei but respects the Strategist. Kei's creative and seemingly absurd ideas help Todo overcome his psychological condition known as the yips, and the two develop a close friendship. Taro Yamada, another former rival turned teammate, treats Kei kindly and is deeply moved to receive respect from the Strategist personality. Kazuki Tsuchiya is a teammate who joined because of Kei and holds the Strategist version in particular admiration. Even Kinoshita, a younger catcher who initially underestimated Kei, becomes a devoted fan after witnessing the Strategist personality's commanding presence.
Kei is one of the most complex characters in the story due to his psychological condition, which is initially mistaken for amnesia. He actually experiences a dissociative identity disorder with two distinct personalities. The first personality, often referred to as The Fool or The Master by his peers, is his original and dominant nature. This version of Kei is cheerful, goofy, lazy, and sometimes whiny, with a carefree attitude that leads him to prefer video games and snacks over baseball. He frequently makes lewd jokes and non-sequiturs, including a signature gag called Pai-ke that most people do not find amusing. He also has a habit of suddenly shouting random phrases like nipple hair. Despite his silly exterior, this version of Kei is secretly very perceptive about other people's emotions and often offers surprisingly insightful observations without realizing it.
The second personality, called The Strategist, is the persona Kei developed during his time as a baseball prodigy. This version is cool, calculating, charismatic, and extremely strict with both himself and others. He is coldly focused on victory and on developing his childhood friend Haruka Kiyomine into the best pitcher in Japan. The Strategist personality emerged from the immense pressure Kei faced as a genius catcher, and it eventually went dormant when the stress became overwhelming, allowing his original personality to resurface. Those around him interpreted this change as memory loss.
Before his psychological breakdown, Kei was a famous genius catcher known as the Skilled General. He formed a feared battery duo with Haruka Kiyomine that dominated middle school baseball so thoroughly that some opponents quit the sport entirely. Kei had trained obsessively from childhood, logging every detail of his baseball knowledge into what he called his Absolute Notebooks. However, the constant pressure to win, combined with the burden of managing Haruka's exceptional talent, caused Kei to lose the joy of playing baseball. The sport became a duty rather than something fun, and the accumulated stress eventually shattered his psyche, causing his Strategist personality to recede and his original Fool personality to re-emerge. Rather than accepting invitations to prestigious private schools, Kei chose to attend Koteshiki High School because it was close to his home and had many girls, with no intention of continuing baseball.
Initially, Kei wants nothing to do with baseball and rejects the sport entirely. However, Haruka follows him to Koteshiki High School and, along with other talented former rivals who have also gathered at the school, gradually drags Kei back into playing. Over the course of the story, Kei begins to rediscover the fun of baseball through his new teammates and experiences. After losing in his first summer tournament in high school, a significant change occurs when his two personalities begin to communicate internally. The Strategist personality starts teaching the Fool personality about baseball, and Kei sets a new goal for himself to defeat his former genius self and become even better than the Strategist ever was. The two personalities continue to coexist, with the Strategist eventually hoping to disappear once he has passed all his knowledge to the original Kei. Stress, mental fatigue, or even comedic failures can trigger sudden switches between personalities during important moments, though the original Fool personality remains dominant and the Strategist cannot act against his will.
Even without his memories or the Strategist personality active, Kei's body retains the physical skills he developed through years of intense training. His natural instincts allow him to make skilled plays at the catcher position and hit effectively without consciously understanding why. He consistently bats third in the lineup, just as he did in middle school. When the Strategist personality is present, Kei becomes a baseball mastermind capable of reading opponents perfectly, calling precise games, and making brilliant tactical decisions. Using his old Absolute Notebooks and guidance from his Strategist self, Kei rapidly regains his elite-level skills. He was known for his extreme training regimen, which included running for an hour daily and performing five hundred swings, as well as strictly monitoring his food intake.
Kei's most significant relationship is with Haruka Kiyomine, his childhood friend and the ace pitcher who forms the battery with him. Haruka remained stoic and devoted to baseball even after Kei changed, and he was instrumental in dragging Kei back into the sport. Their bond extends beyond baseball, and they slowly rebuild their friendship as Kei progresses. Haruka later comes to realize that the pressure of managing his exceptional talent contributed to Kei's breakdown, leading to feelings of guilt.
Other important relationships include Shunpei Chihaya and Aoi Todo, both former rivals from middle school who became Kei's teammates at Koteshiki. Chihaya likes to tease the Fool version of Kei but respects the Strategist. Kei's creative and seemingly absurd ideas help Todo overcome his psychological condition known as the yips, and the two develop a close friendship. Taro Yamada, another former rival turned teammate, treats Kei kindly and is deeply moved to receive respect from the Strategist personality. Kazuki Tsuchiya is a teammate who joined because of Kei and holds the Strategist version in particular admiration. Even Kinoshita, a younger catcher who initially underestimated Kei, becomes a devoted fan after witnessing the Strategist personality's commanding presence.