Farma de Médicis began as Kanji Yakutani, a 31-year-old Japanese medical researcher and associate professor. After his younger sister Chiyu perished from an incurable brain tumor, he devoted his existence to pharmaceutical development. This relentless drive culminated in fatal overwork, triggering a heart attack. Upon death, Yakutani reincarnated into the body of 10-year-old Farma de Médicis, a noble’s son in the medieval-inspired San Fleuve Empire. The original Farma died from a lightning strike, and Yakutani’s memories merged with the boy’s identity, though the native consciousness faded.
Physically, Farma has blond hair and blue eyes, bearing Lichtenberg figure scars on his arms from the lightning. A divine connection erased his shadow, drawing suspicion from religious authorities until the Church provided an artifact to conceal this anomaly.
His personality fuses Yakutani’s driven, analytical compassion with Farma’s noble upbringing. Haunted by Chiyu’s death, he obsessively pursues accessible medicine for all social classes, defying the era’s elitism. He forms a protective, almost paternal bond with his new younger sister Blanche, seeing her as Chiyu’s surrogate. Typically calm and diplomatic, he unleashes fierce resolve against medical injustices or threats to loved ones. Past workaholic tendencies linger, though he occasionally questions this imbalance.
Divine blessings from Panactheos, God of Medicine, grant Farma unique abilities:
- **Creation and Reduction**: His left hand materializes substances whose molecular structure he comprehends, like streptomycin or paracetamol. His right hand erases matter, wielding "non-attribute" magic beyond elemental constraints.
- **Divine Sight**: Viewing through his left hand reveals ailments as glowing areas (blue for illness, white for correct diagnosis, red for error). His right hand enables microscopic vision.
- **Infinite Divine Power**: Limitless magic reserves allow feats like evaporating seawater to rescue Blanche. Yet this complicates biological agent creation, as his power automatically sterilizes cultures like penicillin.
Relationships shape his journey. His father Bruno evolves from distrust to ally after Farma cures Empress Elisabeth’s tuberculosis. Brother Palle’s aggression contrasts with Blanche’s adoration. Professional ties include tutor Eléonore Bonnefoi, childhood friend and assistant Charlotte "Lotte" Soller, and former rival Pierre, whom he mentors after saving Pierre’s daughter.
Key developments unfold:
- **Medical Breakthroughs**: He debunks superstitions by scientifically curing chickenpox in Blanche and tuberculosis in the Empress, using modern diagnostics like microscopes.
- **Pharmacy Establishment**: With Elisabeth’s patronage, he founds "Parallel World Pharmacy," offering affordable care and challenging the corrupt Apothecary Guild. Innovations include free clean water and compounding guilds for commoners.
- **Conflicts**: He survives an inquisition by Church templars who initially brand him a demon, later winning their allegiance by healing leader Salomon. He confronts banished, amoral researcher Camus de Sade during a Black Death outbreak.
- **Sacrifice and Reset**: In the web novel’s conclusion, he expends divine powers to shield the empire from cataclysm, surviving critically injured. This resets the timeline: Kanji awakens alive in his original world, while Farma reverts to his pre-reincarnation self, erasing all medical advancements.