Yogiri Takatou wakes up during a school trip only to discover that chaos and destruction have taken over. His classmates have been transported to another world, but he missed out on the Sage's mysterious Gift that was given to them. Things take a turn for the worse when Yogiri and another student are left alone as bait to distract a dragon while their group leaves. Yogiri, who possesses the power of Instant Death, is determined to protect his friend from the dangerous Level 1000 monster. However, staying awake long enough to use his power poses a challenge. Despite not caring about his own safety, Yogiri is committed to doing whatever it takes to save his friend.