A key issue noted for First appearance of Gustav. Honzuki no Gekokujō: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen - Daiichibu 「Hon ga Nai Nara Tsukureba Ii!」 #4 was published by TO Books on March 1, 2017, as part of a series that began in 2016. Miya Kazuki writes, and art comes from Suzuka. It features Myne and Gustav.