Lu Changan, an ordinary high school senior, accidentally ended up on a desert island. Just when he thought his life was over, a mysterious live broadcast room suddenly appeared on his wrist - the "Desert Island Classroom System", which could summon "famous teachers" to teach online. The problem is that the masters matched by the system are more unreliable than the last: the master who taught him to identify poisonous mushrooms was poisoned and fell asleep first; the master who taught him tactical combat tripped over himself during the practice; the master who taught him reconnaissance and tracking always said "the target is ahead" and then got lost for three days. The most outrageous thing is that the system will start the "famous teacher assessment" every once in a while. Masters who fail the assessment will be "optimized" by the system, and the assessment questions often have nothing to do with desert island survival - for example, asking the fighting master to use Tai Chi routines to move among the sharks, and asking the investigation master to use Conan-style reasoning to find the missing coconut. Lu Changan not only has to face the harsh environment of the desert island every day, but also racks his brains to "wipe the butt" of these funny masters, while avoiding the increasingly weird threats on the island. Until he discovered that the audience in this live broadcast room were not human beings, but examiners from a certain advanced civilization, and the truth behind his exile on a desert island turned out to be a cosmic-level "Master-Disciple Dating Conference" selection competition.
