A collaboration event between Hagi City in Yamaguchi Prefecture and the TV anime *Gintama*, titled “Gintama Calendar: Sometimes It’s Good to Look Back,” will be held at various locations throughout Hagi City from October 1 to December 31, 2026. The event will feature collaboration menus at eight local restaurants, collaboration lodging packages at four facilities, a stamp rally visiting six locations, and a birthday event for Gintoki Sakata, among other activities.