Under Doctor appears in the table of contents of 28 Weekly Shonen Jump issues (週刊少年ジャンプ, Shueisha), between 2026 and 2026. Its first chapter appears in issue 9, 2026, published January 26, 2026. No final chapter is marked in the sources; the database records it up to issue 37-38, 2026, published August 10, 2026.