Ep. 4: Junko Kanno seeks revenge against negligent veterinarian Yoshiyuki Honjou for her dog's death
Aired on October 26, 2005

4
Junko Kanno brings her ill canine companion to veterinarian Yoshiyuki Honjou for medical care, but the animal passes away regardless. She subsequently learns from assistant Masami Sekimoto that Honjou neglected to provide any treatment. While investigating further, Junko discovers a pattern of indifference toward animal welfare in his practice. Motivated by grief for her pet and concern for other creatures, she decides to take matters into her own hands. She resolves to punish Honjou for his lack of care, aiming to send him to Hell as retribution for his negligence and the suffering caused to the animals under his watch.
Episodes
- Ep. 1 · Mayumi Hashimoto sends classmate Yoshimi Kuroda to hell after enduring severe bullying and blackmail.
- Ep. 2 · Ryouko Takamura hires Kouichirou Kisaragi, unaware he is her stalker, before using Hell Girl to send him to Hell.
- Ep. 3 · Daisuke Iwashita uses Hell Link to avenge friend Shinichi Muroi by sending bully Mamoru Hanagasa to Hell.
- Ep. 4 · Junko Kanno seeks revenge against negligent veterinarian Yoshiyuki Honjou for her dog's death
- Ep. 5 · Computer-illiterate CEO Riho Kaifu forces expert Misato Tamura to hack Hell Correspondence
- Ep. 6 · Keiko witnesses neighbor Namiko's affair and faces harassment and bullying threats against her daughter Haruka.
- Ep. 7 · Ayaka's revenge fails when Kaoruko's counter-curse nullifies the straw doll ritual
- Ep. 8 · Chie Tanuma seeks revenge after witnessing Gorou Ishizu push her friend off a building.