After putting his medical studies on hold for a while, Tokumaru Tokuda had been idling his days away. However, things changed when he received a distressing email from his older brother. Prompted to take action, Tokumaru sets out on a perilous journey to a forbidden valley in Western Tibet, with only a photo as his guide. Accompanying him are two guides, Sonam and Namgyal. This route is infamous for being fraught with danger, and locals steer clear of it, deeming it unlucky. Braving the risks, the intrepid trio take on the challenge of trekking across this elevated terrain on foot.