Yui Yuigahama

Biodata

Background / History

Yui first approaches the Service Club after losing a heart-shaped plush toy given to her by Kaori of the Handicrafts Club. Though she finds the toy in Sato's possession, she hesitates to involve a teacher because she fears damaging Kaori and Sato's relationship. The incident exposes her habit of prioritizing others' reactions over her own needs. 4 5

With the club's help, Yui recognizes that Minami Sagami's hostility toward her stemmed from jealousy and begins expressing her conclusions and feelings more directly. She refuses Kaori's attempt to return the plush, realizing that the object had become an obstacle to their friendship rather than proof of it. 5 6 10

Yui later confronts her painful memory of a stray calico cat she had cared for six years earlier. After Dong Yunshan locates the cat, Little Flower, at a cat café, Yui chooses to visit her rather than take her away, prioritizing the cat's well-being over her own attachment. 33 35

As the Service Club becomes involved with Cloud Snow Tea, Yui manages the brand's social-media account. Although she initially considers this work insignificant because she did it for her friends, performance data shows that her account substantially outperforms competing brands. She begins to recognize social-media operation and public relations as genuine strengths. 519

During university-application preparation, Yui chooses Comprehensive Selection and develops plans to create a new Little Snowflake account with Komachi Hikigaya's photography. She learns to connect her past account-management experience, future public-relations interests, and university goals in her own application materials rather than relying solely on Dong's revisions. 519 523

After entering university, Yui moves into an off-campus apartment with Komachi and Saki Kawasaki. Though the arrangement gives her continued support from her close friends, she is still encouraged to develop greater independence in daily life. 544

Appearance

Yui is described as a cute, expressive high school girl with large eyes. She often carries a phone covered in sparkly decorations and favors a friendly, casual presentation. 4

• Uses a flashy, sparkly-decorated phone. 4
• Has large, expressive eyes. 4
• Wears her hair down on some occasions. 25
• Her bun visibly bobs when she becomes excited. 257
• Wears an apron decorated with small dogs, given to her by Yukino for her birthday. 140
• Is self-conscious when selecting swimwear and prefers styles that are both comfortable and provide adequate coverage. 524

Personality

Yui is empathetic, socially perceptive, and strongly concerned with maintaining harmony. She notices shifts in people's expressions, moods, and relationships, but this sensitivity initially causes her to suppress her own wishes and become anxious about others' judgments. 5 139 325

She admires Yukino Yukinoshita's honesty and ability to remain true to herself. Over time, Yui learns to speak more openly, including asserting that she will partner with Yukino in the tennis match despite Yumiko Miura's pressure. 49 88 93

Yui is cheerful and easily flustered, particularly when she misreads romantic situations involving Yukino and Dong Yunshan. Her attempts to investigate or comfort others are sincere, though often overly direct or tactless. 19 108 141

Although she remains prone to underestimating herself, Yui gradually gains confidence when others identify concrete value in her skills. She comes to see that her instinctive attention to people, her ability to make others feel respected, and her sensitivity to online audiences can be used constructively in public relations and long-term relationship building. 519 522

Yui is deeply affected by the prospect of graduation and changing relationships, but she believes that meaningful bonds can endure different classes, schools, and stages of life. She continues to interpret Yumiko's bluntness and other friends' actions in the most charitable light possible. 413 535

Abilities & Skills

Social Perception

Yui is highly attentive to atmosphere and interpersonal behavior, often noticing emotional undercurrents that others overlook.

• Correctly distinguishes Minami Sagami's coldness from outright hostility during the plush-toy incident. 5
• Recognizes when Dong Yunshan already knows the answer to the Film Research Club mystery from his expression. 16
• Understands the emotional paralysis that can prevent someone from reaching out to an isolated person, drawing from her own experience of social pressure. 185
• Gradually becomes better at interpreting indirect remarks between classmates. 291
• Recognizes the comfortable, wordless understanding between Yukino and Dong and admires the way they respond to one another's needs without explanation. 459
• Identifies the considerate motive behind Yumiko's apparent rejection of a study session, interpreting it as an attempt to let Yui rest before admissions results. 535

Empathy and Support

Yui naturally offers reassurance and emotional support to people around her.

• Supports Yukino during the tennis-club confrontation and openly calls her an important friend. 88
• Comforts Yumiko when she worries about growing apart from Hayama Hayato. 413
• Shows concern for Rumi Tsurumi's isolation and understands why classmates might be afraid to approach her. 184 185
• Helps create a celebratory atmosphere for Service Club gatherings, including her own birthday party. 139 141
• Offers emotional and practical support to Yukino and Dong when Yukino's family attempts to impose conditions on their marriage, proposing school activities as a cover for their preparations. 459
• Comforts Iroha when the group discusses their future separation and anxiety about becoming independent. 527

Baking

Yui begins learning baking as a way to build confidence in cooking.

• Initially struggles to make cookies because she becomes distracted watching Yukino work. 83
• Improves through step-by-step instruction and successfully bakes cookies. 83
• Later presents Dong Yunshan with peach-shaped cookies she made herself. 312

Social-Media Management and Public Relations

Yui demonstrates strong instinctive skill in operating a brand account and communicating with an online audience.

• Manages Cloud Snow Tea's official social-media account, which significantly outperforms comparable brand accounts. 519
• Uses audience feedback from the account to identify customer demand for conveniently located Cloud Snow Tea stores. 295
• Decides to use her account-management experience for Comprehensive Selection applications and develops a plan for a new Little Snowflake account. 519
• Works with Komachi to pair her audience-management skills with Komachi's photography, creating material that can support both of their future applications. 519 523
• Learns to describe her work as public-relations experience while retaining her own voice and goals in application materials. 523

Performance and Event Support

Yui is willing to take visible roles when her friends need help.

• Sings alongside Yukino to delay the school festival closing ceremony while Dong searches for Minami Sagami. 253 254
• Recruits Yumiko Miura to assist with sports-festival commentary. 279
• Participates in gathering information for Hayama's anonymous-email investigation, albeit with an excessively direct approach. 108
• Helps photograph locations and people for the Student Council's information magazine, including capturing a natural-looking photograph of Yukino and Dong at a rapeseed flower field. 440 441
• Assists Iroha in subtly guiding school discussion around the Graduation Ball and performs Yukino's assigned role of appearing silent and troubled to encourage speculation. 469 471

Equipment / Items

• Heart-shaped plush toy — A palm-sized plush with embroidery and tulle trim, originally attached to her schoolbag; given to her by Kaori. 4
• Mushroom pendant — Made by Kaori and brought to the Service Club after the plush-toy incident. 10
• Dog-pattern apron — Yukino's birthday gift to Yui. 140
• Phone — Decorated with numerous sparkly accessories; later used in her work managing Cloud Snow Tea's online presence. 4 519

Relationships

• Yukino Yukinoshita — Close friend and Service Club companion. Yui admires Yukino's integrity, receives guidance in becoming more assertive, and publicly chooses to stand beside her during the tennis challenge. She remains devoted to Yukino after graduation, supports Yukino and Dong's marriage plans, and fondly observes the ease of their married life. 49 88 93 459 534
• Dong Yunshan — Service Club companion who helps resolve her requests, supports her reunion with Little Flower, and guides her through difficult situations. Yui is also quick to tease or misunderstand his relationship with Yukino. Dong later helps Yui recognize the professional value of her social-media work and prepare for university applications. 22 35 104 519 523
• Komachi Hikigaya — Friend and fellow Service Club associate. Komachi often helps Yui interpret situations and supports her emotionally. The two later plan a creative partnership combining Komachi's photography with Yui's account management and become apartment roommates at university. 17 33 49 519 544
• Yumiko Miura — Friend whose forceful personality can intimidate Yui. Their relationship is tested when Yui chooses Yukino as her tennis partner, but Yui continues to work with and support Yumiko afterward. Yui remains able to recognize Yumiko's concern beneath her harsh phrasing. 85 88 279 413 535
• Minami Sagami — Classmate and former source of tension. Sagami's jealousy contributed to the plush-toy conflict, though Yui later shows greater understanding of her circumstances. 5 236 291
• Kaori — Handicrafts Club friend who gave Yui the plush toy and later makes her a mushroom pendant. 4 10
• Saki Kawasaki — Close friend who provides practical advice and shares observations about Yui's growth. They later become university roommates, with Saki and Komachi helping Yui manage everyday life outside of baking. 113 155 383 544
• Iroha Isshiki — Junior friend and Student Council president. Yui recruits Iroha's help for large school events, collaborates with her during the Graduation Ball campaign, and supports her anxieties about independence and the future. 459 469 471 527
• Little Flower — A calico cat Yui cared for as a child. Their reunion helps Yui accept that loving the cat does not require taking her home. 33 35

Story Role / Major Arcs

Service Club's First Request

Yui's missing plush toy becomes the Service Club's first completed request. Her unwillingness to assert herself is treated as the underlying issue, and the resolution begins her personal growth in honest communication. 4 5 6

Study and Baking Arc

After struggling with studying and comparing herself to Dong's strong grades, Yui is encouraged to find her own purpose in learning. She later takes up baking, gradually gaining confidence through cookies and confectionery practice. 22 23 82 83

Tennis Challenge

When Yumiko challenges Yukino to women's doubles, Yui overcomes her fear of confrontation and volunteers as Yukino's partner. The match helps her grow accustomed to acting on her own feelings despite worrying about others' reactions. 88 93

Little Flower Arc

Yui recounts the loss of Little Flower, a cat she once secretly cared for, and confronts her fear of separation. Reuniting with Little Flower at a cat café allows her to make a mature decision about the cat's future. 33 35

School Festival and Student Council Arcs

Yui is distressed by Minami Sagami's role on the school-festival executive committee and later assists in delaying the closing ceremony while Dong searches for Sagami. She also helps seek candidates for the student-council election, though Dong and Yukino conclude that the pressures of the presidency would not suit her empathetic temperament. 236 253 325 326

After Iroha ultimately decides to run for Student Council president herself, Yui continues supporting the Student Council's projects. She later brings Iroha into the effort to use a major school event as cover for Yukino and Dong's plans and helps steer student discussion during the Graduation Ball campaign. 327 459 469 471

Cloud Snow Tea and University Preparation Arc

Yui's management of Cloud Snow Tea's social-media account becomes a major source of personal confidence. Encouraged by measurable evidence of its success, she decides to pursue Comprehensive Selection through account-management and public-relations experience, then forms a creative partnership with Komachi for a new Little Snowflake account. 519 523

University Life Arc

Following her university acceptance, Yui begins living with Komachi and Saki in an off-campus apartment. The arrangement preserves the three friends' support system while challenging Yui to become more independent in her day-to-day life. 535 544

Notable Quotes

“It’s not to go against you. It’s to work hard together with Yukino, who’s helped me! Because... because Yukino is an important friend to me!” 88

“When you’re in a stagnant environment, even the urge to move forward comes to a halt.” 185

“I have to do it myself... No problem!” 519

Trivia

• Yui loves cats and once secretly cared for a stray calico cat. 33
• Her birthday is celebrated by the Service Club with a cake, gifts, and karaoke. 139 140 141
• She is Type O blood. 140
• She describes study sessions as including breaks, chatting, and sharing recent news rather than only studying. 25
• She loves peaches and briefly confuses the word “prom” with “plum.” 459
• She later shares an apartment with Komachi Hikigaya and Saki Kawasaki while attending university. 544