Haramura Nodoka

Biodata

Feature	Details
Name	Haramura Nodoka (原村和)
Alias(es)	Nodoka-chan; Xiao Hehe (online mahjong identities) 4 6
Gender	Female 4
Affiliation	Kiyosumi High School; Kiyosumi High School Mahjong Club 4 114
Occupation/Role	Mahjong player; Kiyosumi's vice-captain in the high-school league 114
Status	Active 182
First Appearance	Chapter 4

Background / History

Nodoka spent part of her childhood in Nara after transferring from Tokyo because of her father's work. There, she joined the Achiga Children's Mahjong Club with Shizuno Takakamo, Ako Atarashi, and their friends. She later transferred schools during her second year of middle school, separating from the group. 100 141

By her first year at Kiyosumi High School, Nodoka was already the national middle-school individual mahjong champion. Her online identity, Nodoka-chan, was known for an exceptionally high win rate, while the name Xiao Hehe was associated with nearly flawless online play. 4 29

Her father works in Tokyo, leaving Nodoka to attend school on her own. She initially struggled to reproduce her online composure in live games, where environmental distractions and other players could affect her decisions. 6 23

Appearance

Nodoka is a pink-haired Kiyosumi student with clear blue eyes, fair skin, and a notably composed presence at the mahjong table. She commonly wears the Kiyosumi High School uniform and is strongly associated with a penguin plushie she carries during matches. 4 29 40

• Long pink hair, sometimes styled in subtle twin tails. 4
• Bright blue, described as sapphire-like, eyes. 4 24
• Usually wears glasses during analysis and training. 91
• Carries a Penguin Plushie—called “Ade Penguin”—as a source of comfort and concentration. 24 40

Personality

Nodoka is serious, analytical, and intensely committed to mahjong as a fair competition. She reacts strongly to Saki Miyanaga's deliberate plus-minus-zero play because she sees intentional losses and manipulated outcomes as an insult to the game she loves. 11

Though usually calm and self-controlled, Nodoka is emotionally vulnerable in private. She fears thunder and darkness, becomes flustered under unwanted attention, and can be frightened by unfamiliar supernatural phenomena. 5 7 114

She is also compassionate and unusually accepting toward her friends. When Saki and Yuki confess that they share feelings for Kageyama Sora, Nodoka refuses to let romantic conflict destroy their friendship and proposes that they support one another instead. 25 89

Abilities & Skills

Data-Driven Mahjong

Nodoka is a theory-oriented, data-driven player whose strength lies in calculation, hand efficiency, defensive awareness, and reading opponents' discards. She is regarded as a formidable online player and a national middle-school champion. 4 29

• Can determine discards immediately after drawing, displaying calculation ability that even Toka considers exceptional. 29
• Analyzes opponents' discard logic and identifies deceptive tile patterns during holographic AI training. 85 86
• Won a nine-game streak in her first documented high-school match. 30
• Prioritizes optimal play over intimidation, superstition, or opponents' attempts to control the table. 115

Self-State and Anti-Interference

Nodoka's concentration allows her to reproduce the focused mental state she normally reaches in online mahjong. Hisa Takei's training helps her reduce the impact of live-game distractions. 23 47

• Her Penguin Plushie gives her the security of being at home, helping her enter her preferred playing state. 24 29
• Her narrowed focus lets her resist external pressure and remain steady against unusual mahjong phenomena. 47
• She breaks Toyoko Momoko's invisibility ability, winning from Momoko despite Momoko's expectation that Nodoka would be unable to perceive her hand. 47
• Her early live-game weakness was susceptibility to outside information and atmosphere; this was the central focus of her training camp regimen. 23

Golden-Wing State

During her high-school league Vice-Captain Battle, Nodoka manifests a special state described as having “golden wings.” Its exact mechanics are not explained. 114

• Appears as she begins her first high-school league match in peak condition. 114
• Accompanies a calm self-draw victory despite the other players attempting to establish control of the table. 114
• Nodoka herself remains a believer in “scientific mahjong” and does not acknowledge special abilities as the source of her play. 114 115

Equipment / Items

• Penguin Plushie / “Ade Penguin” — Nodoka's comfort item and a practical aid for maintaining concentration in live matches. It is stolen, torn during a struggle, and repaired before being returned to her. 24 40
• Pink cherry-blossom rabbit plush — A gift from Kageyama Sora. 143
• Holographic mahjong wristband — Used during Mahjong God's VR training to simulate tile texture and operate virtual mahjong tables. 85

Relationships

• Kageyama Sora — Her boyfriend and a major source of emotional support. He encourages her mahjong development, accompanies her at training camps and tournaments, and promises to keep her informed about his whereabouts. 13 19 182
• Saki Miyanaga — Teammate, close friend, and competitive partner. Nodoka initially clashes with Saki's plus-minus-zero style, but their shared desire to reach Nationals develops into mutual support. 6 11 12
• Yuki Kataoka — Best friend and Kiyosumi teammate. Their playstyles contrast sharply, but they tease, support, and train with one another closely. 5 8 25
• Hisa Takei — Kiyosumi's club captain and Nodoka's mentor. Hisa identifies Nodoka's difficulty with live-game distractions and designs training around her Penguin Plushie. 23 24
• Ryumonbuchi Toka — A self-proclaimed arch-rival and fellow data-driven player. Toka is fixated on defeating Nodoka, while Nodoka is initially unaware of the intensity of that rivalry. 4 36 43
• Amae Koromo — A powerful opponent who returns Nodoka's penguin and seeks to become her friend. Nodoka responds to her with kindness despite knowing little about her. 40 48
• Shizuno Takakamo, Ako Atarashi, and the Achiga Mahjong Club — Childhood friends from Nodoka's time in the Achiga Children's Mahjong Club; they reunite as National Tournament rivals. 100 140 141

Story Role / Major Arcs

Conflict with Saki Miyanaga

Nodoka confronts Saki over her repeated plus-minus-zero games, unable to accept someone with Saki's ability intentionally avoiding victory. Her insistence that mahjong be played sincerely helps motivate Saki to rediscover enjoyment in winning and join Kiyosumi's Mahjong Club. 6 8 11

Training Camp and Live-Match Adaptation

After losing to professional player Fujita Yasuko, Nodoka becomes more determined to improve and reach Nationals. At training camp, Hisa develops a program to help her overcome the gap between her dominant online play and her distraction-prone live performance. 14 23 24

Prefectural Preliminaries

Nodoka publicly declares Kiyosumi's goal of winning the national championship before the preliminaries begin. She later earns widespread attention with a nine-game winning streak and carries her Penguin Plushie to sustain her concentration. 27 29 30

In the team final, Nodoka faces Toka and later Toyoko Momoko. Her increasingly focused play threatens a perfect game against Toka, while her ability to ignore external interference allows her to counter Momoko's invisibility. 44 46 47

Mahjong God Training Camp

Nodoka trains with holographic mahjong AI alongside players from several schools. She becomes increasingly engaged with tactical analysis, identifying deliberately misleading discards and discussing adaptive strategy with Sora. 75 85 86

National Tournament

As Kiyosumi's vice-captain, Nodoka enters the high-school league Vice-Captain Battle against Usuzumi Hatsumi, Atago Kinue, and Usuzumi Sae. Surrounded by occult-style mahjong, she stays committed to her own rational play, even when her optimal discards inadvertently aid Hatsumi's Demon Gate strategy. 114 115

When Hatsumi unleashes a yakuman, Nodoka remains composed rather than panicking. Her response emphasizes her defining strength: continuing to play methodically regardless of pressure, spectacle, or apparent supernatural interference. 116

Notable Quotes

“Please, let me... be happy too!” 11

“How far... of course... the national championship.” 27

“I will win. As long as I win, Saki won't feel down.” 42

“With you here, I'm not afraid of anything, but I believe even more that I'll definitely win.” 182

Trivia

• Nodoka's popularity as a former middle-school champion draws reporters and spectators to her matches. 13 29
• The Penguin Plushie is initially embarrassing for her to use publicly, but it becomes essential to her live-match stability. 24 29
• Her analytical style contrasts with her refusal to recognize mahjong abilities as anything other than coincidence or irrationality. 114 115
• Although Toka considers Nodoka her arch-rival, Nodoka initially does not realize that Toka feels this way. 36 43