Meng Geum Ho, who is actually the popular author Eun Ho, transfers to a new school. Unwilling to socialize with any of his classmates, he soon gets himself a bad reputation as someone who is not to mess with. When the unpopular girl called "One" accidentally watches him beat up some guys, she runs away in fear but leaves her lunchbox behind. Meng Geum Ho finds it and searches for its owner stating that he also have a request for that person. What could that request be? And what happens when One and Meng Geum Ho are forced to be partners on a field trip?