Revised Version of (C61)[Switchback Life!(Various]Append and (C61)[Switchback Life!(よろず)]Switchback Life!2002 Ori-Chara Calendar(https://e-hentai.org/g/2432936/4d3296b0e4/) Page 2-7 see Calendar. Page 60: the Original Version Cover. The color is different. Page 61: the p59 in Original Version, something about the original doujinshi by Matsuo and Nagatsuma.
Artists: Matsunoji Hitotsu/Matsuo Yukihiro Ko-Ji!/Nagasaka Kouji/Sakata Koji Naruse Chisato Koshimizu Takayuki/TAKOS/Mikoshi Matsuri Mori Shiji Takepon/Nakasato Souji Kotaroh/Aizawa Kotaroh Chururi/Ishikawa Nobunosuke Chiichan/Sagara Kai Goto-P Maito Fuyugo Misaki/Nagatsuma Naoko Majima Junji