Ep. 13: Seance reveals Kyouichi's death as Oki Katsumi attacks with the Byakko sword
Aired on December 24, 1999

13
Sakon conducts a seance with Ukon, during which the voice of Kyouichi emerges to disclose that he is deceased and interred near flowers. Oki Katsumi, a family friend, exposes himself as the murderer while attempting to exhume Kyouichi's remains. Katsumi engages in combat wielding the Byakko sword, but the weapon shatters upon striking a stone fox statue. Consequently, Katsumi meets his demise when the broken blade strikes him.
Episodes
- Ep. 9 · Sakon Investigates the Suspicious Fire That Destroyed Hayami's Workshop and Claims Ririsu's Life
- Ep. 10 · Sakon uncovers the left-handed killer Aoki through voice mimicry and a past fire connection.
- Ep. 11 · Sakon attends a Bunraku performance at the Akizuki residence before a murder mystery unfolds.
- Ep. 12 · Sakon investigates suspicious blood on hydrangeas at Byakko Temple linked to Muramasa's Byakko sword legend
- Ep. 13 · Seance reveals Kyouichi's death as Oki Katsumi attacks with the Byakko sword
- Ep. 14 · Sakon investigates the Ran'ou Museum after Director Yuuki Mari is murdered with an Egyptian knife.
- Ep. 15 · Sakon seeks to delay Kisaragi's arrest by investigating museum staff tensions and the director's unpopularity.
- Ep. 16 · Museum Manager Suspect and Staff Member Killed by Statue
- Ep. 17 · Kaoruko and Sakon expose Isshiki as the murderer of Museum director Yuuki Mari