Jiang Shiyu

Biodata

Background

Jiang Shiyu attends Linhai University as a first-year Language Department student. Her father is a high-school physics teacher; she jokes that he draws force diagrams even during family arguments. She also works part-time and offers to treat Kannazuki to street food after receiving her first paycheck 60 74 113.

Her attraction to Kannazuki begins with his opening-ceremony speech. His assertion that law exists to protect people who cannot protect themselves convinces her that he genuinely believes in helping the vulnerable 62 75.

Appearance

Jiang Shiyu wears her hair both loose and in a side braid. During her ginkgo-tree outing with Kannazuki, the braid is tied with a thin pale-blue cord 62 74.

• Clothing: Canvas sneakers appear during her confession and subsequent campus encounters 60 61.
• Winter outfit: A creamy-white fuzzy jacket, jeans tucked into ankle boots, and a floral canvas bag 74.
• Other winter wear: A thick scarf and a bulky white down jacket 62 113.
• Visible reactions: She frequently blushes around Kannazuki, while cold weather reddens her nose and hands 60 62 74.

Personality

Jiang Shiyu is lively, affectionate, and easily flustered by romantic attention, but she takes the initiative in their relationship. She confesses publicly, invites Kannazuki to dinner, and asks permission to kiss him. Her excitement afterward leads her to recount the date to her roommates and record it in her notes app 60 61 62 65.

Her care is practical as well as emotional. She offers to bring Kannazuki food, watches over his bruised arm, brings hot water on their outing, and wishes for him to live an ordinary life with regular meals, sleep, and occasional movies 62 71 75 113.

She firmly rejects unwanted pursuit and challenges authority when she believes someone is being mistreated. She tells Zhou Qiwen that his confession creates no obligation on her part, then confronts university officials over their attempt to punish Kannazuki for defending himself 67 72.

Her loyalty initially makes her dismiss Zhao Xiaoman’s warnings that Kannazuki’s behavior may be calculated. Nevertheless, she notices the emotional emptiness behind his smile. Once his identity as Kira is confirmed, her devotion does not become approval: she condemns his killings and asks him to destroy the Death Note 65 75 116.

Abilities & Skills

Emotional Perception

Jiang Shiyu recognizes inconsistencies in Kannazuki’s behavior despite his precise control of expressions 75.

• Notices that his eyes do not smile with his mouth, exposing a flaw in the emotional disguise he considers perfect 75.
• Senses a disturbing change in him when he removes his glasses before confronting Zhou Qiwen 67.
• Later connects his avoidance of selfies and crowded downtown locations with his efforts to evade surveillance, after L prompts her to reconsider their relationship 115.

Argumentation

She presents a clear defense of Kannazuki during the university disciplinary meeting 72.

• Identifies Zhou Qiwen’s repeated harassment and her explicit rejections 72.
• Challenges Secretary Liu’s victim-blaming reasoning 72.
• Rejects the claim that resisting an attack automatically makes an incident “mutual fighting” 72.

Relationships

• Kannazuki / Light Yagami — Boyfriend and the subject of her public confession. He initially accepts to weaken L’s profiling, but develops genuine feelings that disrupt his usual self-control. Their relationship fractures when she learns he is Kira 60 63 112 116.
• L — Initially a campus acquaintance with whom she shares dinner; later her kidnapper. He uses her safety to force Kannazuki into a ceasefire and exposes his identity to her 77 112 114.
• Zhao Xiaoman — Roommate who questions Kannazuki’s seemingly perfect behavior. Jiang Shiyu angrily rejects her warning and accuses her of jealousy 65.
• Lin Keying and Chen Yuhan — Roommates with whom she shares the news of her first kiss with Kannazuki 65.
• Zhou Qiwen — Unwanted pursuer who harasses her for a month and confronts Kannazuki after she rejects him 67 72.
• Her father — A physics teacher who supports her efforts to defend Kannazuki and proposes contacting the media over the threatened disciplinary action 74.
• Ryuk — Observes her without her knowledge and repeatedly questions Kannazuki about the danger she poses to his secrecy and ambitions 65 79 80.

Story Role / Major Arcs

Public Confession and First Kiss

Jiang Shiyu approaches Kannazuki in the crowded library with red roses and introduces herself before roughly three hundred students. He accepts her confession after calculating that a girlfriend would make him appear less like a solitary serial killer. They exchange WeChat details while the spectators celebrate 60.

L subsequently moves her English Listening and Speaking class next to Kannazuki’s substituted Legal English class to create regular encounters. Unaware of this arrangement, she welcomes the opportunity to see him every Thursday and invites him to dinner 61.

During the date, she explains that his speech about protective justice inspired her feelings. Her sincerity briefly interrupts his calculated responses. In a neighborhood park, she asks to kiss him; he admits that he has never kissed anyone, and their kiss produces reactions he cannot consciously control 62 63.

Campus Fight and Disciplinary Dispute

Zhou Qiwen confronts Jiang Shiyu over her unanswered messages and choice of boyfriend. She rejects his claim to an explanation and tries to leave with Kannazuki. When four sanda fighters join the confrontation, she begs Kannazuki to stop fighting and call the police 67 69.

Afterward, she tends to his bruised arm and insists on accompanying him to the advisor’s meeting. She interrupts the proceedings to challenge the proposed public reprimand and condemn the officials’ treatment of the victim 71 72.

On their later ginkgo-tree outing, she questions Kannazuki’s emotionally distant smile and confesses again. Despite his warning that he may be selfish and incapable of ordinary warmth, she insists that she likes him. He accepts with a less detached response, and she promises to watch for the day his eyes smile too 74 75.

Life Beside Kira

Jiang Shiyu remains unaware of Kannazuki’s identity while their relationship continues. He covers her with his coat as she sleeps and declares to Ryuk that he will prevent her from discovering his killings. Ryuk warns that Kannazuki may eventually have to choose between her and the notebook 79 80.

Following Kira’s worldwide declaration against war, she messages Kannazuki to ask what kind of person Kira is. Rather than answer, he tells her to rest and switches off his phone 96.

Kidnapping and Revelation

L abducts Jiang Shiyu and binds her to a chair in an abandoned warehouse. Using a video of her captivity, he secures Kannazuki’s agreement to stop using the Death Note for twenty-two days and cooperate with the investigation. At this point, L explicitly acknowledges that Kannazuki truly loves her 112.

Jiang Shiyu recognizes that L is using her to threaten Kannazuki and initially rejects his accusation that her boyfriend is Kira. She cites Kannazuki’s protective gestures and care for injured stray cats as evidence against it 114.

L then prompts her to recall the locked desk drawer, Kannazuki’s frightening reaction when she touched it, and his accurate prediction of a drug lord’s death. She also reinterprets his avoidance of photographs and surveillance-heavy locations. L tells her she is merely a prop preserving Kannazuki’s sense of humanity—an interpretation distinct from his earlier acknowledgment of genuine love 112 115.

Warehouse Confrontation

Kannazuki reaches the warehouse and frees Jiang Shiyu, but she recoils from his touch. He admits that he is Kira and argues that his victims deserved to die. She rejects this justification, warns that killing L will only make her hate him more, and asks him to destroy the notebook. Her rejection helps drive him to concede that L has won 116.

After Kannazuki kills L’s two bodyguards and leaves wounded, Jiang Shiyu calls after him and follows for two steps before stopping. She wants to pursue him but cannot bring herself to continue; her subsequent fate is not shown in the supplied chapters 117.

Notable Quotes

“Your confession was your decision. My choice is mine.” 67

“Because when you smile, your eyes don't.” 75

“I just want you to be an ordinary person who eats and sleeps on time every day, and occasionally watches a terrible movie with me.” 113