Hirata

Biodata

Feature	Information
Name	Yosuke Hirata (平田 洋介)
Alias(es)	“Sunshine Boy” — Shiomiya Yo's provisional diary designation 2
Gender	Male
Affiliation	Class D; Advanced Nurturing High School
Occupation/Role	Student; Class D organizer and mediator
First Appearance	Chapter 2

Background / History

Hirata introduces himself as a sports enthusiast who wishes to join the school soccer club. Shiomiya immediately identifies him as a radiant figure likely to become Class D's social center and records him under the provisional “Sunshine Boy” label 2.

As Class D's lack of points and poor academic performance become evident, Hirata takes responsibility for organizing students. He proposes study sessions to improve the class's grades, though several classmates initially refuse to cooperate. Shiomiya advises him to focus on the underperforming students who still resist attending rather than seeking exceptional tutors 24.

During the island special exam, Hirata becomes central to Class D's survival efforts. He manages supply discussions, helps settle disputes, supports Shiomiya's captain nomination, and coordinates the camp after Shiomiya claims multiple strongholds 64 65 66 67.

Personality

Hirata consistently seeks cooperation, stability, and inclusion within Class D. He invites isolated classmates into group activities, proposes practical solutions during crises, and repeatedly tries to ensure that no classmate is abandoned 24 42 64.

His concern for class unity can make him vulnerable to manipulation. Shiomiya relies on Hirata's reputation to become captain and later exploits Hirata's desire to help others by feeding him a false account of Ayanokoji's circumstances 66 78.

Under severe pressure, Hirata's usual warmth can disappear. After the campfire incident deepens the divide between Class D's boys and girls, he confronts Shiomiya with an unusually cold and indifferent expression before returning to his role as mediator 78 79.

Abilities & Skills

Leadership and Organization

Hirata can quickly gain Class D's cooperation and convert discussions into coordinated action.

• Proposed study sessions to raise the class's academic performance and class points 24.
• Organized the island expedition's supply planning and urged students to spend points only on necessities 64.
• Redirected Class D's toilet-facility dispute by sending everyone to explore for bases first 65.
• Coordinated camp setup, resource gathering, and stronghold guards after receiving Shiomiya's reconnaissance information 66 67.

Mediation

Hirata routinely places himself between conflicting classmates.

• Warned Shiomiya about the rumors surrounding his sale of school information and the class's demand for his points 27.
• Tried to save Sudo from expulsion and reacted strongly to the possibility of losing a classmate 42.
• Conducted the search during the missing-clothing incident and attempted to prevent the boys-versus-girls conflict from escalating 71.
• Restored temporary order after the campfire incident by assigning immediate tasks to both groups 79.

Sports

• Enjoys all sports and plans to join the soccer club 2.
• Served as referee for Shiomiya and Koenji's swimming race, declaring the result a tie 24.

Relationships

• Shiomiya Yo — Classmate and frequent collaborator. Hirata accepts Shiomiya's advice on study sessions, nominates him as Class D's island captain, and works with him on stronghold strategy; Shiomiya later manipulates Hirata into focusing on Ayanokoji 24 65 66 67 78.
• Karuizawa Kei — Publicly presents as her partner during the island exam; she relies on Hirata's judgment when discussing supplies such as a private toilet 64.
• Kiyotaka Ayanokoji — Hirata protects Ayanokoji during the class search by concealing the item found on him. Later, after Shiomiya's deception, Hirata becomes determined to help Ayanokoji integrate into Class D 71 78 80.
• Ken Sudo — Hirata tries to include Sudo in the study sessions and is distressed by Sudo's potential expulsion 24 42.
• Ibuki Mio — Supports Class D's decision to temporarily accept the Class C student into camp despite the risks involved 69.
• Kushida Kikyo — Fellow Class D organizer; both respond strongly to the possibility of Sudo's expulsion and attempt to protect classmates through collective action 42.

Story Role / Major Arcs

Study Sessions and Class D's Financial Problems

Hirata attempts to improve Class D through study sessions and cooperation, facing resistance from Sudo, Ike, and Yamauchi. He also approaches Shiomiya about purchasing school-rule information but cannot secure the points required 24 28 31.

Island Special Exam

Hirata manages Class D's group survival efforts, supports Shiomiya's election as captain, and becomes the primary organizer of camp operations. His endorsement is decisive in persuading classmates to accept Shiomiya despite their distrust 65 66 67.

Class Division and the Campfire Incident

When missing clothing causes distrust between Class D's boys and girls, Hirata conducts the search and silently protects Ayanokoji. The subsequent fire pushes him to briefly question Shiomiya's role in the chaos, exposing a colder side beneath his usual composure 71 78 79.

End of the Island Exam

Hirata completes Class D's final form according to Ayanokoji's instructions and helps place Horikita in the public spotlight as the class's apparent strategist 80.

Notable Quotes

“Sorry. I just want everyone to become one group and get along peacefully.” 64

“Everyone, calm down. It's raining, so girls, go bring in the clothes first. Guys, move the firewood somewhere sheltered from the rain.” 79