Weekly Shonen Jump issue 30, 1972 — 週刊少年ジャンプ, the weekly manga anthology published by Shueisha — came out on July 17, 1972 and carries 13 series, with Lion Books on the cover. Inside: Lion Books, Koya no Shonen Isamu, The Gutsy Frog (Dokonjou Gaeru), Toilet Hakase (Professor Toilet) (chapter 4), Samurai Giants and Harenchi Gakuen, and more. It contains the final chapter of Warukamen.