"The Sinking Structure, Clione, and Lost Child -Log4" (Play time : 30 minutes)This is a continuation of "The Sinking Structure, Clione, and Lost Child -Log3".Start with Log1. Development of Log4: "Two mysteries that intersect"Clione, who lost sight of Coco, arrived at her own astonishing roots!and!A crazy old man who appears in a strange shape attacks them!History that becomes clear like angry waves!The story that continues from Log1 finally advances to the