Futo Urushida, an unremarkable and gloomy high schooler, wakes up to find himself "transported" to a mysterious deserted island while still in his school uniform. After rescuing Mai Natsume—the school’s "unattainable flower" and a popular social media influencer who was also transported to the island—the two decide to team up to survive on this monster-infested land. In a chaotic situation where every teacher and student from their high school has been sent to the island, Futo must overcome numerous trials as he aims for an escape—!