Ep. 19: Black Jack visits Dr. Kowa's clinic and assists in a thyroid operation.
Aired on March 14, 2005

19
Black Jack takes Pinoko to a local clinic for digestion medicine and assists Dr. Kowa, a country doctor, with a thyroid operation. He is impressed by the respect and friendliness Dr. Kowa receives from his patients, despite knowing the doctor is unlicensed. The story concludes with Dr. Kowa deciding to return to school to obtain proper qualifications.
Episodes
- Ep. 15 · Black Jack Cures Dying Girl Who Wants to Marry Him After Recovery
- Ep. 16 · Pinoko leaves with a jobless burglar, prompting Black Jack to sacrifice his license reinstatement to rescue her.
- Ep. 17 · Rei loses her voice to a polyp, struggles with silence, and finds hope through friendship.
- Ep. 18 · Jun lies about playing baseball to his online friend Tom before seeking Black Jack's medical help.
- Ep. 19 · Black Jack visits Dr. Kowa's clinic and assists in a thyroid operation.
- Ep. 20 · Black Jack's Cafe Owner Recounts His Past as a Fugitive Pickpocket
- Ep. 21 · Black Jack performs corneal transplant on Kumiko, revealing donor's final vision
- Ep. 22 · Pinoko attempts adult romance with Tinq while Black Jack performs surgery for his reversed organs.
- Ep. 23 · Black Jack encounters Kiyomi, a dedicated island physician who develops romantic feelings for him.