In 2021, Tsuyoshi Furukawa, a renowned traditional craftsman in Kyoto, was found dead with multiple stab wounds and an arrow in his back at a love hotel. The suspect, Chiharu Sato, his disciple and involved in a secret affair with him, was arrested. The relationship was a double affair, with Furukawa married and Sato also married. Sato planned the murder, using poison and an arrow, and stabbed Furukawa to death after he became incapacitated. The case revealed complex emotions of respect, love, obsession, and jealousy. Sato was sentenced to 15 years in prison in 2023.
Country: Japan
State/Province: Kyoto, Japan
City/Region: Kyoto City
Incident Type: Murder
Relationship Status: Extramarital relationship
Relationship Duration: Approximately 5 years
Incident Date: July 9, 2021
Relationship Origins:
Relationship Stages:
Contributing Factors:
Red Flags:
Motives:
Relationship Outcomes:
How the relationship or connection began.
Approximately 5 years
Important relationship phases recorded for this case.
Reported red flags or early concern points.
Contributing factors and possible motives from the available sources.
2021-07-09
Recorded relationship or case outcome.
English labels are shown first. Original-language titles are preserved for source verification.
事件解説チャンネル · Original language: Japanese
妻の着信で豹変…家族同然の弟子が書き殴った『処刑ノート』の闇【京都陶芸家不倫事件】
Jealousy
The relationship began as respect and mentorship but evolved into a secret extramarital affair. The victim maintained his family life while engaging in a physical relationship with the suspect. The suspect's feelings grew into obsession and jealousy, exacerbated by the victim's refusal to leave his wife. This emotional turmoil culminated in a planned murder involving poison and stabbing, reflecting a pattern of jealousy and betrayal.
The suspect self-reported the incident to hotel staff, leading to police involvement and arrest. The murder weapon included an arrow and knife. The suspect left detailed execution notes indicating premeditation. The suspect was pregnant with the victim's child, unknown to her at the time. Trial began in January 2023, resulting in a 15-year prison sentence. No appeal information is available.
No significant confusion reported. The suspect confessed by contacting the hotel. Rumors about ghostwriting and work appropriation exist but lack evidence.
The suspect, a disciple of the victim, entered a secret affair with him while married to another man. Over five years, her feelings turned from respect to obsession and jealousy due to the victim's family commitments and refusal to leave his wife. She planned the murder with poison and an arrow, incapacitating the victim before stabbing him to death. The victim's phone call from his wife triggered the suspect's violent outburst. The suspect was arrested shortly after and later sentenced.
High risk due to prolonged secret affair, emotional obsession, jealousy, and prior planning of lethal violence. The suspect's mental state and escalating anger were significant risk factors.
Long-term secret affairs can escalate into dangerous obsession and violence. Emotional neglect and unbalanced relationship expectations may lead to tragic outcomes. Premeditation and detailed planning indicate high lethality risk. Awareness of emotional escalation and early intervention in extramarital conflicts is critical.
The suspect's growing obsession, refusal to accept the victim's family status, and planning of lethal methods were key early signals.
Execution notes, the victim's phone call from his wife, and the suspect's behavior at the hotel helped connect the case.
Physical evidence included stab wounds, an arrow, poison in food, and execution notes. The suspect's self-reporting was critical.
Not reported.
Trial and sentencing details emerged later, clarifying the suspect's mental state and legal outcome.
Rumors about ghostwriting and work appropriation remain unproven and unclear.