Kenichi Ogisu, often referred to by the nickname "Funny Face," is a student at the notorious Suzuran All-Boys High School, a place known for its constant fighting and power struggles among delinquent youths. He is a character who operates within the school's rigid, unspoken hierarchy of physical prowess. Ogisu serves as an informant and strategist of sorts, being highly knowledgeable about the rankings and reputations of the various fighters within the school. Upon noticing the arrival and actions of the new transfer student Kaburagi Kazeo, specifically after Kazeo defeats another student named Wajima with a single punch, Ogisu approaches him to explain the consequences of the act. He informs Kazeo that this victory has immediately placed him as the school's number five fighter, demonstrating his own awareness of the shifting social landscape.

His primary motivation appears to be aligning himself with strong and promising fighters, likely for protection or to gain influence within the school's violent ecosystem. He suggests an alliance to Kazeo, proposing that they join forces, as he sees the new student as a potential contender to challenge Goura Toru, the current top fighter at Suzuran. This reveals a pragmatic and somewhat opportunistic side to his personality, as he seeks to be close to power rather than necessarily seeking the top spot for himself. His nickname, "Funny Face," suggests a distinctive appearance that likely makes him memorable, though it is his role as an observer and connector that defines his function in the story.

As the conflict within the school escalates, particularly with the arrival of the arrogant and powerful transfer student Kagami Ryohei, Ogisu becomes a victim of the increasing violence. He is eventually hospitalized as a result of the relentless assaults carried out by Ryohei and his gang. This event marks a key point in the plot, illustrating the brutal stakes of the turf war and the indiscriminate nature of the attacks that affect even those who are not the primary fighters. His injury serves to heighten the sense of crisis that spurs other characters into action. In terms of abilities, Ogisu is not portrayed as one of the school's top fighters. His notable skills are not physical but informational; his ability to correctly identify Kazeo's new ranking suggests he has a network of sources and a keen understanding of the school's fight culture and its unwritten rules. His role is less about combat and more about navigating and explaining the social dynamics of Suzuran. Beyond his connection to Kazeo and his awareness of Goura as the top fighter, specific details regarding other key relationships or a deeper character arc are not provided. His development is largely defined by his shift from a scheming observer to a casualty of the violence he sought to navigate.