Proving its popularity with a TV anime adaptation, this is the sensational SF urban legend survival story!! "Kunekune" meets "The Time Uncle" again! Sorao and Kozakura head into the dangerous night of the [Isekai], filled with madness and malice, in search of the missing Toriko. In the ruins they arrive at, they encounter a "Doppelgänger" and the fateful woman "Urumi Satsuki"!! Can Sorao find and rescue Toriko in the [Isekai]...? The complete comicalization of the two women's monster exploration survival story, Volume 4!