Klein

Biodata

Background / History

Klein is a Chiyu Academy student with a strong interest and demonstrated aptitude in biology. Blanca recommended her as a successor assistant for Mobius, and the Mobius Research Institute had already prepared an acceptance letter offering her direct admission as an intern postgraduate student under Dr. Mobius, bypassing university studies. 32 47

She represented Chiyu Academy in an international biology competition and has familiarity with cutting-edge biological instruments. 50

Appearance

Klein is a young woman with emerald-green hair and azure rainbow-colored eyes resembling Mobius's. She is often associated with her school materials and reading glasses. 34 35 39

• Wears reading glasses; without them, she struggles to see distant details clearly. 39
• Carries notebooks and biology study materials. 35 45
• Has a reserved presentation and generally sits alone in class. 34 35

Personality

Klein is timid, conservative, and easily flustered under pressure. During her abduction, fear left her unable to call for help, and the encounter with the Honkai-corrupted Oddity later became a recurring nightmare. 39 45

Despite this anxiety, she is diligent and academically driven. She continued reviewing biology notes before Mobius's lecture, carefully recorded the material, and became increasingly engaged as she understood Mobius's advanced teachings. 34 35 Her admiration for Mobius turns into a determined desire to study under her once she learns the doctor's identity. 49 50

Klein is also prone to overthinking dangerous situations. Xu Ziling's claims that the kidnappers remained at large lead her to conclude that returning to school would be unsafe, making her willing to remain at the Research Institute. 45 46

Abilities & Skills

Biology

Klein possesses exceptional biological aptitude for a high-school student.

• Follows and agrees with Mobius's biology lecture when most of the class cannot understand it. 35
• Identifies Mobius's explanations as directly resolving her prior academic doubts. 45
• Has experience representing Chiyu Academy in an international biology competition. 50
• Is familiar with advanced biological instruments through prior study. 50

Diligence

• Takes continuous notes during Mobius's lecture. 35
• Actively asks about Mobius's research direction so she can prepare to assist in future experiments. 50
• Is willing to accept demanding work in exchange for the chance to learn under Mobius. 49

Relationships

• Mobius — Biology idol, prospective mentor, and future employer. Klein initially knows her as “Professor Serpent,” then eagerly accepts the opportunity to study under the renowned biologist. 45 49 50
• Xu Ziling — Mobius's assistant and Klein's apparent rescuer and protector. Unknown to Klein, Xu orchestrated the staged kidnapping that convinced her to remain at the institute. 38 39 45 46
• Elysia — A friendly presence at Mobius's residence who prepares meals, introduces herself to Klein, and helps her settle in. 46 48 49
• Blanca — Klein's recommender to Mobius and the person responsible for the institute acceptance letter. 32 47
• Kevin — Fellow student who attempts to rescue Klein during her kidnapping and becomes the hope she clings to while captive. 39 40

Story Role / Major Arcs

Recruitment at Chiyu Academy

Mobius identifies Klein as Blanca's recommended candidate during a lecture at Chiyu Academy. Klein distinguishes herself by understanding the advanced material, taking detailed notes, and responding to Mobius's theories with growing comprehension. 34 35

Kidnapping Incident

Klein discovers Xu Ziling restraining an intoxicated Mobius and tries to leave, only for Xu to knock her unconscious and carry her away with Mobius. 37 38 She wakes bound to a chair in an alley and is terrorized by Xu's disguised “masked kidnapper” persona. 39

Kevin's rescue attempt is interrupted, and Klein is later moved away from the alley when Xu encounters a Honkai-corrupted Oddity. 40 41 The Oddity's appearance leaves Klein deeply traumatized. 45

Joining Mobius's Institute

After awakening in Mobius's residence, Klein accepts Xu's explanation that she needs protection from the supposed kidnappers and agrees to stay at the Research Institute temporarily. 45 46 She later meets Mobius directly, learns that “Professor Serpent” is the famed Dr. Mobius, and enthusiastically accepts Mobius's offer to become an experimental assistant. 49 50

Trivia

• Klein's acceptance letter had been prepared before the kidnapping incident; Xu Ziling realizes he unnecessarily complicated her recruitment by intercepting her before she received it. 47 48
• Mobius considers Klein potentially more talented than Blanca, though she worries Klein initially lacks counter-surveillance awareness. 37 35
• Klein is shocked to learn that Xu Ziling, despite his feminine appearance, is male. 48