Weekly Shonen Jump issue 13, 1971 — 週刊少年ジャンプ, the weekly manga anthology published by Shueisha — came out on March 22, 1971 and carries 13 series, with Otoko Ippiki Gaki Daishou on the cover. Inside: Otoko Ippiki Gaki Daishou, Manga Drifters, The Gutsy Frog (Dokonjou Gaeru), Toilet Hakase (Professor Toilet), Lion Books and Arashi! San-piki, and more. This issue carries the first chapter of Lion Books. It contains the final chapter of Jinsei Nisho Ippai.