Klein

Biodata

Feature	Value
Name	Klein Moretti 497
Original Name	Zhou Mingrui 795
Alias(es)	Mr. Fool; The World; Sherlock Moriarty; Gentleman Thief Black Emperor; Gehrman Sparrow; Dwayne Dantès 62 291 479 795 806
Species/Race	Human; transmigrator from another world 795 1618
Gender	Male
Affiliation	Tarot Club; formerly the Nighthawks 65 279
Occupation/Role	Tarot Club leader under the identity of Mr. Fool; detective; Beyonder operative 65 291 806
Status	Awakened as Mr. Fool 1618
First Appearance	Chapter 51

Power Progression

Stage / Realm / Level	Chapter	Notes
Clown	279	Retained his Clown abilities after resurrecting from the Tingen catastrophe.
Faceless — Potion fully digested	937	Fully digested the Faceless potion after driving back Vice Admiral Dusk’s Glory Vessel.
Sequence 3: Scholar of Yore	1440	Advanced after completing a staged first-person horror scenario and digesting the Bizarro Sorcerer potion.
Sequence 2: Miracle Invoker	1578	Successfully advanced on an uninhabited island and began adapting to the new state.
Sequence 1: Attendant of Mysteries	1604	Drank the potion beneath Saint Hosenam Church after completing its ritual requirements through the God of Truth’s reinterpretation.
Mr. Fool — awakened	1618	Abner used the Land of Unknown to awaken him after presenting his ascension journey to the Tarot Club.

History

Tingen and Resurrection

Klein worked as a diviner and took his first business commission seriously, using Astrological and Dream Divination to determine that Joyce Myer would return to Tingen after suffering misfortune. He hoped to establish a reputation that would aid his Acting. 51

He later served with the Nighthawks at Blackthorn Security Company under Captain Dunn Smith. Following the Tingen catastrophe, he died in battle and was buried, but resurrected with his Clown abilities intact. He concealed his return because an ordinary person could not safely explain coming back from the dead. 61 279

Mr. Fool and the Tarot Club

Above the Gray Fog, Klein maintained the identity of the ancient and inscrutable Mr. Fool. When Abner sought membership, Klein accepted him into the Tarot Club and allowed him to take the codename The Tower. 62

He developed the Tarot Club into a network for exchanging formulas, materials, intelligence, commissions, and protection. His authority initially depended heavily on carefully maintained appearances, but repeated sacrifices, rituals, and interventions gradually gave the Fool persona real influence. 65 104 206

Backlund Identities

In Backlund, Klein operated through several layered identities. As Sherlock Moriarty, he became involved in investigations tied to foreign spies and the Intis ambassador incident; as the Gentleman Thief Black Emperor, he concealed his connection to Sherlock while acting against criminal and supernatural threats. 291 479

He later used Gehrman Sparrow for dangerous operations at sea and constructed Dwayne Dantès as a wealthy public identity, initially intended to support Dunn Smith and Daly Simone’s safety and freedom of movement. 795 1001

Transmigrator Revelation

Klein and Abner eventually confirmed that they were fellow transmigrators. Klein revealed his original name, Zhou Mingrui, and explained that he arrived in this world in 2018, while Abner identified himself as Liu Bo and stated that he arrived in 2021. 795

Although Abner knew far more about Klein’s connection to Sefirah Castle than Klein expected, he continued preserving the distinction between Klein and Mr. Fool in public. Their relationship became more candid, but remained defined by selective disclosure, teasing, and mutual testing. 794 795 1154

Ascension and Awakening

Klein advanced through the high Sequences while contending with the Celestial Worthy’s influence and the escalating threat of Outer Deities. He ultimately risked an advancement to Attendant of Mysteries rather than delay until external enemies could better interfere. 1578 1604

After Klein entered Slumber following his battle against Amon, Abner convened the Tarot Club, revealed the truth of Klein’s identity, and used a reconstruction of Klein’s journey to help awaken him. The Club welcomed him back as both Klein and Mr. Fool. 1617 1618

Appearance

Klein was first shown wearing a cheap formal suit and carrying a black cane inlaid with silver while working at Blackthorn Security Company. 61

• Frequently changes appearance through disguises, spirit-body forms, Marionettes, and aliases. 373 837 1390
• Assumes a black-armored, crown-wearing Black Emperor form when acting as the Gentleman Thief Black Emperor. 479
• Used a female spirit-body form derived from the Demoness Card for covert reconnaissance beneath the Governor’s Mansion. 837

Personality

Klein is methodical, cautious, and habitually tests dangerous assumptions through divination before acting. He prefers layered plans, indirect intervention, and prepared escape routes over open confrontation. 51 104 757 837

His public persona as Mr. Fool is calm, distant, and devoted to “Equivalent Exchange,” but he remains deeply affected by the suffering of innocents and by threats to people he cares about. He helped arrange the rescue of Capim’s victims, protected former colleagues from a distance, and continued worrying about Melissa, Benson, Sharron, Dunn, and Daly even as his power increased. 446 447 1001 1403

Klein also has a dry, playful sense of humor. He privately mocks Roselle’s narcissism, teases Danitz over his bounty, and occasionally allows embarrassing situations to unfold for his own amusement. 392 759 1150

Abilities & Skills

Gray Fog and Ritual Authority

Klein’s core advantage is his connection to the mysterious space above the Gray Fog, from which he acts as Mr. Fool.

• Summons Tarot Club members Above the Gray Fog and oversees their exchanges. 62 65
• Receives prayers, sacrifices, and reports through his honorific name and corresponding rituals. 104 293
• Established sacrifice passages and later descended into reality as a special spirit body through a Summoning Door. 104 206
• Transfers items between reality and the Gray Fog, including materials, money, charms, and ritual offerings. 206 271
• Uses the Gray Fog to suppress or isolate dangerous objects and influences. 1521

Divination and Investigation

Klein combines multiple divination methods with detective work and careful inference.

• Performs Astrological Divination using personal details and constellation charts. 51
• Uses Dream Divination to investigate objects, dangers, and hidden information. 51 521
• Employs pendulum and coin divination before accepting commissions or attempting dangerous rituals. 104 324 492
• Conducts Spirit Channeling and dream infiltration to extract information from spirits and targets. 373 644
• Uses investigations, planted evidence, and psychological misdirection alongside supernatural methods. 294 307

Seer Pathway Techniques

Klein’s Seer Pathway abilities support deception, survival, and indirect combat.

• Uses Clown control to conceal shock, fear, and other emotional reactions. 285 795
• Gains danger premonitions, including warnings of imminent threats. 307
• Adopts identities and appearances suited to specific operations, including Sherlock Moriarty, Gehrman Sparrow, and Dwayne Dantès. 291 795 1001
• Controls Marionettes and used one disguised as Sea King Jahn Kottman to manipulate Demitryev’s perceptions. 958 1390
• Creates increasingly lifelike versions of The World, eventually sharing the puppet’s senses as though operating a second body. 958
• Uses Historical Projections, including projections of powerful mystical items. 1542

Tactical Combat

Klein adapts abilities, artifacts, commands, illusions, and spirit-body methods to defeat stronger opponents.

• Overwhelmed Aileen by combining illusion, spatial displacement, sacred bullets, invisible threads, a Shriek, and prohibitive commands. 483
• Avoids direct fights when possible, such as infiltrating the Naturism Sect’s underground complex through an invisible spirit body rather than breaking its physical defenses. 837
• Rescued Tracy from a Demoness of Affliction by using infiltration and summoning the Mandated Punishers instead of confronting the enemy alone. 757
• Used Misfortune to disrupt Ince Zangwill’s teleportation and force him into the path of official Beyonders. 1213

Equipment

• Azik Copper Whistle — Summons a messenger and has the side effect of attracting Dead Spirits. 521
• Magic Mirror Arrodes — Sentient mirror that supplies intelligence, though it concealed its true condition to avoid Zaratul’s attention. 644 1403
• Black Emperor Card of Blasphemy — Contains the Lawyer Pathway’s formulas and rituals through Sequence 0 Black Emperor. 392
• Error Card — Lets Klein secretly enter the space Above the Gray Fog without his usual ritual. 837
• Demoness Card of Blasphemy — Enables a concealed female spirit-body form useful for reconnaissance. 837
• Funeral Blade — Weapon forged for Klein by Abner; its crystal was later exhausted. 759 913
• Phoenix Revolver — Purchased as a powerful offensive weapon after the Funeral Blade’s crystal was depleted. 913
• Transparent Edict Dagger — A High Sequence item that records Edicts, Exiles violators, opens random teleportation doors, inflicts devastating wounds, and performs Astrology; its use causes suicidal impulses or loss of direction. 521

Relationships

• Abner Braine / Mr. Tower — Fellow transmigrator, Tarot Club ally, business partner, and eventual friend. Their relationship began with mutual deception and developed into candid but still guarded cooperation. 62 794 795 1252
• Sharron / Miss Temperance — Trusted ally and frequent companion in dangerous operations. She remained beside Klein during his high-Sequence advancement and openly worried for his safety. 495 1001 1604
• Dunn Smith — Former captain, mentor, friend, and one of the strongest influences on Klein’s values after transmigration. Klein was deeply moved to find him alive. 61 1001
• Daly Simone — Former Nighthawk acquaintance who taught Klein Spirit Channeling; later worked with Dunn under the Dwayne Dantès arrangement. 644 1001
• Melissa Moretti — Klein’s sister. He remains protective of her and arranges for her Savant advancement materials and guidance. 712 853 1042
• Benson Moretti — Klein’s brother, whose safety and future remain among Klein’s concerns. 271 1403
• Azik Eggers — Trusted friend and ally who provided ritual knowledge, historical information, and dangerous artifacts for Klein to safeguard. 104 206 712
• Leonard Mitchell — Former colleague who later joins the Tarot Club as The Star. Leonard eventually learns that Klein is Mr. Fool. 1213 1618
• Audrey Hall / Justice — Founding Tarot Club member whose optimism and growth Klein quietly supports. 65 392
• Danitz — Reluctant subordinate and frequent target of Klein’s dry humor; he remains an important agent in Klein’s maritime affairs. 759 1618

Notable Quotes

“An attempt.” 1618

“Praise You, Mr. Fool.” 794