Klein

Biodata

Feature	Information
Name	Klein Moretti (克莱茵)
Alias(es)	Zhou Mingrui; Mr. Fool; The World/Gehrman Sparrow; Sherlock Moriarty; Dwayne Dantès; Merlin Hermes; “Kaito Kid” 35 202 790
Species/Race	Human Beyonder; later a true god as the Fool 35 380
Gender	Male
Affiliation	Tarot Club; Fool Church; Chat Group 168 380
Occupation/Role	Seer Pathway Beyonder; founder and presiding deity of the Tarot Club 168 206
Status	Active
First Appearance	Chapter 35: “Meeting New Faces” 35

Power Progression

Stage / Realm / Level	Chapter	Notes
Sequence 4 — Bizarro Sorcerer / Demigod	35 116	Arrived at Water Mirror Peak as a Sequence 4 Demigod; later confirmed that he had fully digested the Bizarro Sorcerer potion through carefully staged “pranks” and marionette feedback.
Sequence 3 — Scholar of Yore	194 205	Operated as a Scholar of Yore during the war against George III; at Chernobyl, recovered memories confirmed that the potion had been completely digested.
Sequence 2 — Miracle Invoker	212 240	Prepared the advancement using the return of City of Silver’s suppressed history to the present, then consumed the potion; later addressed as the “Great Miracle Invoker.”
Sequence 1 — Attendant of Mysteries / King of Angels	286 443	Was identified as a Sequence 1 Attendant of Mysteries and later recognized as a King of Angels.
Sequence 0 — Fool	379 380	Prepared a battlefield around the World Tree and successfully became the Fool, retaining his identity while suppressing contamination from Antigonus’s characteristic.

Background / History

Klein introduced himself to Su Lin’s group as both “Klein” and “Zhou Mingrui” after arriving at Water Mirror Peak as a newly advanced Sequence 4 Demigod. Modern snacks and takeout mattered to him because he could not yet reproduce familiar food through Historical Projection. 35

While temporarily displaced from his own world, Klein assisted Su Lin in dismantling a human-trafficking organization. He had traced the criminals through divination and Seer abilities, but the loss of access to Sefirah Castle forced him to act personally while disguised in armor. Although offered a place to cultivate on Water Mirror Peak, he declined because his Mythological Creature path could not be changed easily. He instead sought mental-stabilizing treasures and found relief in modern cities, hotel rooms, lights, and ordinary sleep. 41

His time with Su Lin, Zhongli, and the Chat Group became both a recovery period and a training arrangement. Klein consistently defeated Su Lin in sparring, but acknowledged that Su Lin’s rapid growth was making direct fights increasingly difficult for a Seer specializing in indirect combat. 58

Klein formally brought Su Lin, Zhongli, and Lu Mingfei into the Tarot Club, assigning them the identities Mr. Priest, Mr. Hierophant, and Ms. Empress. He later used the club as both an intelligence network and an organized force against threats such as George III, Amon, Zaratul, and Botis. 168 184

During George III’s Apotheosis crisis, Klein coordinated Angel-level allies, Historical Projections, marionettes, and Sefirah Castle while deliberately escalating the battle into chaos to disrupt the ritual. The operation succeeded, but led to Zaratul’s pursuit and Amon’s eventual capture of Klein. 196 197

Klein resisted Amon through self-altered memories, layered contingencies, divine-name invocations, and his connection to Sefirah Castle. Su Lin’s Holy Judgement destroyed the Worms of Time parasitizing Klein, allowing him to return to the Gray Fog and reclaim his consciousness. 205

After advancing through Miracle Invoker and eventually becoming the Fool, Klein continued pursuing higher authority to protect Earth, repay Su Lin’s help, and survive the threat of the Celestial Worthy. His battle with Amon for Sefirah Castle ended with Klein forcing an all-or-nothing convergence that defeated Amon’s immediate claim, though it left Klein facing the Celestial Worthy directly. 380 671 672

Within the Dream World, Klein’s identity split between Zhou Mingrui’s human side and Klein Moretti’s divinity. He ultimately recovered his memories and accepted that both lives were genuinely his, ending the division between the two identities. 787 790

Appearance

Klein is usually depicted as a black-haired, brown-eyed young man with ordinary features and a scholarly demeanor. His appearance is highly mutable because of Faceless abilities, historical disguises, and the many identities he maintains. 35 196 790

• Often adopts formal clothing, especially a top hat, black evening attire, and a crystal monocle. 202 671
• Has used identities including Sherlock Moriarty, Gehrman Sparrow, Dwayne Dantès, and Merlin Hermes. 790
• As the Fool, can manifest sinister tentacles and other signs of Mythological Creature corruption, though he suppresses them with external techniques and items. 380
• His alternate forms and incarnations can appear independently, including personas tied to the Fool Church. 305

Personality

Klein is methodical, cautious, and intensely preparation-oriented. He selects escape routes, marionettes, projections, hired support, concealment, and contingencies before entering dangerous situations; he considers a Seer unprepared for a performance to be incompetent. 162 197

Despite his increasingly divine status, he remains attached to ordinary comforts: modern food, video games, snacks, ice cream, hotel rooms, and time away from constant crisis management. These habits are closely tied to his effort to preserve his humanity. 41 58 240 671

He is outwardly polite, socially adaptable, and capable of appearing warmly enthusiastic even when using Clown and Faceless abilities to conceal discomfort. Beneath that composure, he is sarcastic, easily embarrassed by Su Lin’s pranks, and especially hostile to forced matchmaking or public speculation about his relationships. 102 168 240 443

Klein is compassionate but pragmatic. He accepts that he cannot halt every historical disaster, yet seeks to reduce civilian suffering; he also refuses to pressure Audrey or Sharron into romantic arrangements despite the rewards Su Lin offered them. 160 443

His defiance becomes most visible around Amon. Even while captured, parasitized, and offered advancement, Klein repeatedly refused submission and answered Amon’s recruitment attempts with a demand to be killed. 202 205

Abilities & Skills

Seer Pathway

Klein’s primary power system is the Seer Pathway, which emphasizes preparation, deception, divination, spiritual manipulation, and indirect combat rather than straightforward force. 58 205

• Uses divination to investigate criminal networks, hidden threats, and future possibilities. 41 196
• Creates and controls marionettes, including animal marionettes used for surveillance. 196
• Manipulates Spirit Body Threads and can turn enemies into marionettes. 58 209
• Uses Paper Figurine Substitutes, illusions, air cannons, throwing knives, and other deceptive combat tools. 58
• Can enter the Historical Void to evade attacks or conceal his true body. 194 197
• His pathway is highly survivable but initially gave him few effective ways to harm himself or win direct frontal battles. 58 205

Historical Projection

As a Scholar of Yore and beyond, Klein can pull people, objects, and powers from history into the present. The ability is strengthened by familiarity and interpersonal connection. 164 196

• Summoned Historical Projections of Azik Eggers, Morax, Reinette Tinekerr, Roselle Gustav, and other powerful figures. 196 209
• Retrieves mundane objects from history, including tarot decks, tables, food, clothing, and tools. 168 194
• Can transfer his consciousness into projections to reduce the burden on allies maintaining the summon. 208
• Cannot freely copy system-created entities or powers; attempts to project Su Lin’s Light God avatar failed because system-made abilities cannot be exploited as free historical copies. 164
• A projection’s duration can be stolen or disrupted by Amon. 205

Sefirah Castle and Gray Fog

Klein is the master of Sefirah Castle, the ancient palace above the Gray Fog and the foundation of the Tarot Club. 168 671

• Conceals, observes, and coordinates allies from above the Gray Fog. 175
• Uses crimson stars and prayers to monitor Tarot Club members and receive Anchors. 205
• Can create passages, interfere with rituals, and shield operations from divine observation. 162 175
• Enables him to return to the Gray Fog directly after fully digesting the Scholar of Yore potion, though deep-level parasitism can obstruct this escape. 205
• Became the contested domain in Klein’s decisive battle with Amon for the position of Lord of Mysteries. 671 672

Fooling, Grafting, and Divine Authority

After becoming the Fool, Klein can alter relationships, perceptions, history, and reality through high-level authority. 380 672

• Uses Grafting to connect otherwise unrelated concepts or locations, including creating a black hole during his battle with Amon. 672
• Can Fool historical facts and manipulate cognition, memory, or identity. 380 787
• Suppressed Antigonus’s madness using the River of Eternal Darkness, a Pure Heart Mantra talisman, a Hymn of Light scroll, and Cor Lapis. 380
• Can establish or maintain dream-based realities, though doing so demands immense power and risks loss of control. 871
• His use of Fooling can have uncontrolled collateral effects, including disruption to Chaldea during his Sequence 0 ritual. 380

Combat Strategy

Klein relies on layered plans, allies, escape routes, and the deliberate creation of battlefield chaos rather than brute force. 160 196

• Uses Flaming Jump and Grazing through Creeping Hunger for movement and emergency escape. 194 196
• Employs Marionettes and Historical Projections as expendable combat pieces when confronting stronger enemies. 196 672
• Will gamble with his own safety when necessary, including triggering a convergence dangerous enough to awaken the Original Creator. 672
• Remains vulnerable to higher-sequence theft, parasitism, and mental interference, particularly from Amon and Zaratul. 164 205

Equipment / Weapons / Items

• Sefirah Castle — Klein’s central domain, source of the Gray Fog, and seat of the Tarot Club. 168 671
• Groselle’s Travels — Used to escape Zaratul by entering the Dragon of Imagination’s fantasy world. 197
• Creeping Hunger — A glove used for its Grazing ability, including attempted teleportation. 196
• Box of the Great Old Ones / Box of the Apocalypse — A high-level artifact Klein wielded during his confrontation with Su Lin. 206
• Crystal Monocle — A recurring accessory and later a symbol of Klein’s conflict with Amon and the Mysteries Pathway. 202 671
• Cane — Used during the battle for Sefirah Castle; it transformed into a black-and-white clock-like artifact. 671 672
• Pure Heart Mantra talisman, Hymn of Light scroll, and Cor Lapis — Used to stabilize himself after becoming the Fool. 380

Relationships

• Su Lin — Close ally, frequent sparring partner, prankster, and benefactor. Klein relies on Su Lin’s intervention against major threats, but is regularly angered by his manipulations, matchmaking schemes, and implanted memories. Klein explicitly wants to grow stronger so he can repay him. 58 205 206 671
• Amon — Primary rival for Sefirah Castle and the Lord of Mysteries position. Their relationship is defined by mutual analysis, theft, parasitism, psychological warfare, and repeated attempts to outmaneuver one another. 202 205 671 672
• Zhongli / Morax — Trusted ally whose historical projection protected Klein during George III’s Apotheosis crisis. Klein associates Morax with a striking sense of security. 168 196
• Tarot Club — Klein’s central organization and source of Anchors. He guides its members as Mr. Fool while using the group for intelligence-sharing, trades, advancement support, and coordinated missions. 168 184 205
• Azik Eggers — Respected friend and ally. Klein summoned Azik’s Historical Projection in battle and later wrote to him before attempting a dangerous advancement. 196 671
• Audrey Hall — Tarot Club member who recognizes Klein’s gentler nature beneath the Mr. World persona. She willingly sought time with his real self, but Klein refused to treat Su Lin’s matchmaking as an obligation. 443
• Sharron — Friend and collaborator whose teacher, Reinette Tinekerr, serves as Klein’s messenger. Sharron responds to Su Lin’s matchmaking more practically by proposing that she and Klein watch a movie. 168 443
• Fors Wall — Tarot Club member and recurring target of Klein’s blunt assignments. She is both intimidated by his growth and involved in Su Lin’s matchmaking scheme. 184 443
• Lu Mingfei — Chat Group companion and Tarot Club newcomer. Klein gave Lu the Assassin Pathway potion, inadvertently becoming the target of Lu’s anger after her advancement transformed her body. 171 191 193

Story Role / Major Arcs

• Water Mirror Peak and modern-world recovery — Joins Su Lin’s group, fights traffickers, adapts to temporary life outside his original world, and uses modern comforts to stabilize his mind. 35 41 58
• Tarot Club expansion — Introduces Su Lin, Zhongli, and Lu Mingfei to the Tarot Club and begins openly involving cross-world allies in its affairs. 168
• George III’s Apotheosis — Organizes allies and Historical Projections to sabotage George III’s godhood ritual amid an escalating Angel-level conflict. 160 196
• Amon’s capture and escape — Is captured, parasitized, and studied by Amon before escaping through hidden preparations, divine remnants, Su Lin’s intervention, and Sefirah Castle. 202 205
• Miracle Invoker advancement — Uses the restored history of the City of Silver to fulfill his Sequence 2 ritual and begin Angel-level advancement. 212
• Becoming the Fool — Successfully advances to Sequence 0, resists corruption, and begins operating openly as a true god. 379 380
• Battle for Sefirah Castle — Faces Amon alone for control of Sefirah Castle, wins through a catastrophic gamble, and proceeds into a deeper struggle with the Celestial Worthy. 671 672
• Dream World awakening — Resolves the separation between Zhou Mingrui and Klein Moretti, restores the distorted world, and accepts both identities as his own. 787 790
• Gensokyo preservation plan — Proposes turning Gensokyo into a dream-based reality to protect it from Lifespan Defilement and commissions Sunday to administer the dream. 871

Notable Quotes

“Kill me.” 202

“I am Klein Moretti, and I am also Zhou Mingrui.” 790

“I only chose to become a god because I had no other choice.” 983

Trivia

• Klein’s self-described thief stage name is “Kaito Kid.” He used a white suit and monocle while stealing a Roselle diary from an exhibition. 202
• He fully digested the Bizarro Sorcerer potion partly by frightening Medici twice while wearing a monocle. 202
• His preferred recovery activities include gaming, snacks, soda, ice cream, and modern food. 58 240
• He strongly objects to Su Lin’s attempts to arrange blind dates with Audrey, Sharron, Fors, Bernadette, and the Iceberg Vice Admiral. 240
• Klein considers interpersonal relationships materially useful for Historical Projection: stronger relationships make a target easier to summon from history. 164