Takeru Shinoyama, the eldest grandson of Rozan Shinoyama, serves as president of Shinoyama Security. This company functions as a front for the Shinoyama Group's covert operations, specializing in eliminating adversaries. Informally called the Dragon King's Palace Agency, it employs elite operatives skilled in violence and clandestine activities. He possesses light brown hair, brown eyes, and wears half-rimmed glasses. Takeru dresses in business suits professionally and tasteful casual attire privately. At 26, he wields significant influence over the Shinoyama Group's shadow operations, handling scandals and threats with calculated efficiency. Publicly, he projects confidence and competence through a poised, firm demeanor. Privately, he exhibits ambition and callousness, proactively authorizing offensive actions against perceived threats to the family name, including family members. As the eldest son of Gaku Shinoyama, Takeru is a direct heir to the Shinoyama empire. His marriage to Kiri Shinoyama solidified a political alliance between powerful families. Two years prior to the main events, he concealed the truth about his sister Suzuka Shinoyama’s murder—knowing it was arson, not a boiler accident—to exploit public sympathy for the family’s image. Takeru's chronology reveals key manipulative and tactical actions. Learning from his subordinate Lemmings that his uncle Polka Shinoyama—a potential rival—survived an assassination attempt, he reacted with laughter and declared "playtime’s over," implying prior involvement. He later tasked his younger siblings, Kazuki and Shizuki Shinoyama, with retrieving Polka. When they failed, he stationed surveillance around Polka’s residence, citing the need to prevent another tragedy like Suzuka’s death. Upon Polka’s return to the Shinoyama mansion, Takeru feigned familial warmth while probing Misaki Sakimiya’s connection to the defunct Sakimiya Steel. He expressed genuine condolences for her parents’ demise, acknowledged their past support, and welcomed her as a "friend of the family." After an arson attack on the mansion, Takeru uncovered his relative Goro Shinoyama’s collaboration with the arsonist Fire-breathing Bug. He orchestrated Goro’s interrogation and planned his elimination to reframe Suzuka’s death as a "tragic saint" narrative, thereby nullifying the scandal and bolstering public sympathy. Takeru dismissed Goro’s plea for mercy, noting his accomplice’s incompetence and the impossibility of hiring the real Troublemaker. During the Invisible Hands Incident, Takeru deceived Inspector Tsubaki Iwanome about Fire-breathing Bug’s involvement in the arson, while criticizing police failures to capture criminals like Phantom Solitaire. He highlighted past financial losses from the Troublemaker’s kidnapping of the Prime Minister, underscoring his prioritization of the Shinoyama Group’s stability. Despite his ruthlessness, Takeru displays selective loyalty. His gratitude toward Lemmings for saving Kazuki and Shizuki appeared sincere, though their youth may preclude them as threats to his authority. His capacity for empathy surfaced in his interactions with Misaki, though this remains contextually limited.