Weekly Shonen Jump issue 18, 1972 — 週刊少年ジャンプ, the weekly manga anthology published by Shueisha — came out on April 24, 1972 and carries 12 series, with Misterios on the cover. Inside: Misterios, Koya no Shonen Isamu, The Gutsy Frog (Dokonjou Gaeru), Harenchi Gakuen (chapter 4), Musashi and Toilet Hakase (Professor Toilet), and more. This issue carries the first chapter of Misterios.