Weekly Shonen Jump issue 21, 1970 — 週刊少年ジャンプ, the weekly manga anthology published by Shueisha — came out on May 18, 1970 and carries 13 series, with Harenchi Gakuen on the cover. Inside: Harenchi Gakuen, Derorinman, Kyusoku 0.25-byou!, 1970 Tagiri, Keppare! Ota-Toshu and Akuma-kun Fukkatsu: Sennen Oukoku, and more. This issue carries the first chapter of Kyusoku 0.25-byou!. It contains the final chapter of Horafuki Ichidai.