Shigeo Matsumoto

Shigeo Matsumoto is the president of the Japanese Hunter’s Association. He begins as a calculating nationalist prepared to sacrifice Korea’s S ranks for Japanese dominance, but the collapse of that scheme and Japan’s giant crisis strip away his power and force him to confront the human cost of his decisions.

Biography

The hidden Jeju operation

Matsumoto publicly offers Japan’s elite hunters for a joint operation to exterminate the ants on Jeju Island. Behind the diplomatic language, he designs a second operation: once the Japanese team draws the ants away from their nest, it will abruptly withdraw, leaving Korea’s S-rank strike team isolated. Their deaths would cripple Korea’s hunter force and make the country dependent on Japan. Matsumoto imagines using that dependency to create a new regional order led by hunters, with Ryuji Goto eventually succeeding him. (Chapter 30)

The plan is detailed rather than impulsive. Japan studies the ants’ flight, communications, and response to the queen, while Matsumoto prepares a plausible retreat order that can be defended as concern for his own hunters. His fatal assumptions are that the ants remain predictable and that the Korean team has no independent power capable of overturning the battlefield. Ryuji warns that Jinwoo may be stronger than Japan’s evaluation suggests, but Jinwoo’s absence from the official team reassures Matsumoto. (Chapters 30–33)

Collapse and exposure

The Ant King destroys Matsumoto’s calculations. Instead of remaining with the queen, it hunts and kills Japan’s strongest hunters, including Ryuji, while Jinwoo enters the nest and saves the Koreans whom Japan intended to abandon. Matsumoto loses both his chosen successor and much of the national combat strength meant to underpin his political vision. (Chapters 33–36)

Gunhee Go later confronts him with a recovered recording of the secret withdrawal order. Matsumoto initially maintains a diplomatic posture and produces a recording device of his own, expecting mutual evidence to preserve leverage. When his counter fails and Gunhee’s proof remains decisive, confidence collapses into panic. He kneels and begs Gunhee not to release the truth. Gunhee refuses to forgive him on behalf of the intended victims and sends him away without clarifying when the evidence will become public. Matsumoto leaves Seoul trembling under a punishment made worse by uncertainty. (Chapters 38–39)

The gate over Tokyo

By the time an enormous gate appears above Tokyo, Matsumoto is visibly haggard and politically weakened. He tells Japan’s leaders honestly that the remaining hunters cannot stop what may emerge and that a dungeon break could destroy the country. With no domestic answer, he flies to Russia to hire Yuri Orlov, a barrier specialist demanding ten billion yen for every day his protection remains active. Matsumoto accepts the ruinous price because national survival leaves no meaningful bargaining position. (Chapter 44)

He nevertheless exercises due diligence. Matsumoto asks Orlov for a demonstration before staking Japan on the barrier and restrains the accompanying S ranks when the Russian humiliates them with his power. These choices show an administrator capable of swallowing pride and verifying a solution, even though the solution ultimately fails. When the giants break Orlov’s barrier, Japan loses its last planned defense. (Chapters 44–45)

Responsibility during Japan’s fall

The Japanese association relocates to Osaka as giants devastate the country. With the Jeju scheme exposed and the government preparing judgment, Matsumoto accepts responsibility but asks that any verdict be delayed until the active crisis is managed. This is not absolution: his earlier decisions helped leave Japan without the hunters it now needs. It is, however, a change from the man who tried to convert hidden deaths into political advantage. He places continuity of emergency response before his own position. (Chapter 51)

When Jinwoo arrives, Matsumoto first asks him to defend the remaining population centers. Jinwoo instead divides his shadow army and eliminates the giants across Japan. The reversal is complete: the Korean hunter Matsumoto once treated as a dangerous variable saves the nation that had planned to exploit Korea’s weakness. Matsumoto receives that aid with gratitude and can no longer sustain his earlier fantasy of Japanese supremacy. (Chapters 51–52)

The rewritten world

The Cup of Reincarnation removes gates, the Jeju operation, and the giant invasion from history. Matsumoto is therefore alive in the rewritten world and never carries out the betrayal recorded in the erased timeline. (Chapters 75–77)

Appearance and personality

Matsumoto is an older man with sparse hair remaining along the sides of his head. After Jeju, stress deepens his wrinkles, makes his hands tremble, and leaves him noticeably haggard. His physical decline mirrors the destruction of his political certainty. (Chapters 30, 39, 44)

At first he is patient, secretive, proud, and ruthless. He can present predatory strategy as international cooperation and is willing to kill allied hunters without confronting them directly. His ambition is nationalistic but also personal: he imagines himself founding a hunter-led order and choosing its heir. (Chapter 30)

Matsumoto is not incapable of realistic assessment. Once Japan faces annihilation, he admits weakness, purchases foreign help at enormous cost, asks for proof, restrains offended subordinates, and later accepts that his conduct deserves judgment. His gratitude toward Jinwoo does not erase Jeju, but shows a humbled official beginning to place survival above prestige. (Chapters 44, 51–52)

Abilities, skills, and rank

No personal hunter rank or supernatural combat ability is established for Matsumoto in the supplied chapters. His authority comes from office, access to Japan’s elite hunters, and influence with the government. He should not be described as an awakened combatant without additional evidence.

Strategic planning and intelligence

Matsumoto coordinates research on the Jeju ants, synchronizes a multinational raid, and constructs a concealed withdrawal plan around expected ant behavior. The operation demonstrates logistical sophistication and disciplined secrecy, even though its purpose is criminal and its assumptions fail catastrophically. (Chapters 30, 33)

Diplomacy and negotiation

He negotiates with Korea, Japan’s government, foreign hunters, and Yuri Orlov. He can maintain a courteous public mask, recognize when bargaining leverage has vanished, and commit extraordinary resources in an emergency. His request for Orlov’s demonstration and his control of angry S ranks show practical crisis management. (Chapters 30, 38–39, 44)

Institutional command

As association president, Matsumoto deploys hunters, oversees national gate responses, relocates operations during disaster, and advises political leaders. These capabilities depend on personnel and institutional legitimacy; the deaths at Jeju and exposure of his deception sharply reduce both. (Chapters 30, 44, 51)

Limits and failures

Matsumoto repeatedly mistakes control of information for control of events. He underestimates the Ant King and Jinwoo, fails to secure his own recording advantage against Gunhee, and places Japan’s survival behind a barrier that cannot withstand the giants. His strategy is strongest against predictable institutions and weakest against unprecedented power. (Chapters 33–39, 44–45)

Relationships

• Ryuji Goto: Matsumoto’s leading hunter, confidant, and intended successor. Ryuji’s death destroys both the Jeju operation and Matsumoto’s imagined future order.
• Gunhee Go: His Korean counterpart and intended victim of deception. Gunhee exposes the scheme, rejects his apology, and defeats him politically.
• Jinwoo Sung: First an underestimated variable, later the man who saves Japan. Jinwoo’s actions dismantle Matsumoto’s beliefs about national hunter power.
• Yuri Orlov: The foreign barrier specialist Matsumoto hires at extreme cost after honestly concluding Japan cannot stop the Tokyo gate alone.

Items

• Recording device: Carried into the confrontation with Gunhee as intended diplomatic leverage; it fails to neutralize Korea’s recovered evidence.
• Jeju operational data: Association research used to predict ant movements and coordinate the joint raid.