Katsuragi

Biodata

Appearance

• Bald head: His most conspicuous feature, immediately noticed by Takahashi Ren during the class introductions 1.
• Mature appearance: Ren initially questions whether he is really a high school student 1.
• Stern expression: His normally serious face shows no smugness even after successfully locating the island’s occupation sites 19.

Personality

Katsuragi prioritizes stability, evidence, and manageable risks. He favors attacking weaker classes rather than confronting Class B directly, arguing that a costly clash would let the other classes benefit. He openly acknowledges his preference for stability and considers it the best route to victory 9 47.

He generally remains composed when challenged. He restrains Totsuka’s outbursts, refuses to be baited by Sakayanagi’s insults, and repeatedly intervenes when sports festival tensions threaten to become fights. Even while competing with Sakayanagi, he warns that excessive attention to internal rivalry leaves Class A vulnerable to outside opponents 9 19 39 40 47.

His caution becomes more pronounced after the Uninhabited Island Exam. Ren interprets his subsequent defensive strategy as fear of another defeat, rather than a lack of intelligence. Katsuragi eventually accepts responsibility for his own mistakes and resigns, explaining that he led because he believed his judgment could benefit the class—not because he wanted the position itself 24 47.

History

Contest for Class A’s Leadership

When Hashimoto proposes choosing a class leader, most students initially support Sakayanagi Arisu. Totsuka Yahiko objects and nominates Katsuragi, who asks the class to compare their strategies rather than rush to a decision. Sakayanagi proposes crushing Class B; Katsuragi recommends targeting Class D as the safer option. Their disagreement remains unresolved 9.

Class A subsequently divides into the Sakayanagi, Katsuragi, and Neutral factions. Katsuragi’s supporters actively recruit undecided classmates, approaching both Takahashi Ren and Toba Shigeru. Ren declines to join either side 10.

Katsuragi also loses a Student Council election. Ryuuen later identifies that defeat as a turning point that gave Sakayanagi’s faction the upper hand 19.

Uninhabited Island Exam

With Sakayanagi absent, Katsuragi assumes command of Class A during the island exam. He postpones an argument over toilet facilities to prioritize establishing a base and securing occupation sites. Having inferred the approximate locations of three sites while still aboard the ship, he finds and claims them with Totsuka 18 19.

Ryuuen approaches him with a cooperation proposal:

Katsuragi presents the arrangement to Class A but conceals the leader-guessing component. The class accepts, and he leads everyone to a cavern base 20.

The exam ends with Class A in third place on 120 points, behind Class B and Class D. His classmates immediately demand an explanation, while Katsuragi struggles to identify where the plan failed 20.

In the subsequent discussion, Ishida reports that Katsuragi submitted guesses for Class C’s and Class D’s leaders, leaving Class B blank. Ren and his friends reconstruct a 150-point loss in the guessing round and identify a valid mid-exam leader change as a possible explanation for the failed Class D guess 21.

VIP Exam

Katsuragi adopts a strategy of “inaction”: Class A students are to avoid discussion, probing, and speculation so that VIP identities remain concealed. He regards the risk of losing fifty points through an incorrect guess as greater than the potential benefit of an aggressive approach, while inviting objectors to discuss the policy with him privately 24.

Class A follows his policy during the group discussions. When Ishida asks him to reveal the class’s VIPs, Katsuragi refuses, although he provides group rosters through Toba 25 26.

The strategy does not prevent losses. Ryuuen uncovers the selection pattern and specifically targets Class A’s VIPs. Class A loses the most Class Points, with successful independent guesses by Ren, Ishida, and Toba limiting the damage 27.

Sports Festival

Katsuragi continues organizing Class A’s activities despite his shrinking support. He negotiates cooperation with Hirata Yosuke of Class D, agreeing that the two classes should avoid interference while keeping individual-event plans private. He also warns Class D not to underestimate Ryuuen 34.

His participation plan combines ability, preference, compatible partnerships, and lotteries for luck-based events. However, most classmates wait for Sakayanagi’s approval before accepting it, exposing the gap between his formal role and her practical influence 35.

During the festival, Katsuragi works to contain disputes. He and Hirata calm the aftermath of the pole-tipping defeat, and he overcomes Hashimoto’s public challenge long enough to organize the tug-of-war formation. When Ryuuen deliberately has Class C release the rope, Katsuragi stops Sudo from retaliating and explains that an attack would turn the provocation into a violent incident 39 40.

Resignation

During preparations for Paper Shuffle, Katsuragi opposes challenging Class B, preferring Class C or Class D. At a meeting with Sakayanagi, he reiterates that objection but announces that he will no longer contest the leadership. He accepts responsibility for Class A’s falling points and admits that he chose the wrong path 47.

Sakayanagi offers to retain him as a leader operating under her policies, praising his management skills and proposing that he become her right-hand man. Katsuragi refuses: willingness to obey her would have made their original conflict meaningless. He leaves with Totsuka, and Sakayanagi ends Kamuro’s assignment to monitor him 47.

Abilities & Skills

Planning and Rule Analysis

• Infers the approximate locations of three island occupation sites before landing, reducing unnecessary detours 19.
• Questions how Paper Shuffle handles reciprocal challenges, prompting clarification that a direct matchup puts one hundred Class Points at stake 45.
• Identifies information leaks as a potential source of conflict between allied classes and limits unnecessary disclosure 34.

Organization and Personnel Management

• Uses grip-strength measurements and existing hundred-meter times to select sports festival competitors, allowing students to request retesting 37.
• Emphasizes coordination rather than speed alone when arranging three-legged race partners 35.
• Receives explicit recognition from Sakayanagi for his management ability, despite their tactical disagreements 47.

Negotiation and Conflict Control

• Demands stronger incentives and tangible evidence before agreeing to Ryuuen’s island proposal 19.
• Establishes limited cooperation with Class D without requiring either class to reveal all its plans 34.
• Recognizes Ryuuen’s attempt to provoke Sudo into violence and prevents him from taking the bait 40.

Relationships

• Sakayanagi Arisu — Rival for Class A’s leadership. Their central disagreement is strategic: Katsuragi seeks stability, while Sakayanagi favors more aggressive confrontations. He ultimately resigns but rejects becoming her subordinate 9 47.
• Totsuka Yahiko — His most vocal supporter and frequent assistant. Totsuka nominates him as leader, accompanies him during the island exam, and leaves with him after his resignation 9 19 47.
• Ryuuen Kakeru — Rival class leader and temporary negotiating partner. Their island agreement fails to produce the expected result; Katsuragi later warns Class D about Ryuuen’s deceptive approach 19 20 34.
• Hirata Yosuke — Sports festival counterpart in Class D. They establish boundaries for cooperation and jointly manage tensions within the Red Team 34 39.
• Takahashi Ren — Classmate who refuses to join his faction. Ren recognizes the logic of Katsuragi’s defensive strategy but considers its lack of offensive options dangerous 10 24.
• Ishida — Initially favors Katsuragi’s approach, but later questions the VIP strategy and requests information Katsuragi declines to disclose 9 24 26.
• Hashimoto Masayoshi — Opposes his leadership and publicly challenges his authority during tug-of-war preparations 9 40.
• Kamuro Masumi — Monitors him on Sakayanagi’s orders until his resignation ends the assignment 14 47.

Notable Quotes

“If you focus only on what's happening within our class, our enemies will exploit any opening.” 19

“I never led the class because I wanted to be its leader. I only kept doing it because I thought my judgment could benefit Class A.” 47