A spin-off focused on the main series' secondary character Nakane, Saitsuyo Densetsu Nakane (最強伝説 仲根, "Toughest Legend Nakane"), written by Kenji Yokoi and illustrated by Motomu Uehara and Kazuya Arai (who also are in charge of the artwork for 1-nichi Gaishutsuroku Hanchō), was published on Shogakukan's Yawaraka Spirits website from December 6, 2017,[8][9] to February 20, 2020.[10] Two volumes were released on May 30, 2018,[11] and February 28, 2020.[12]