In Class D of the 3rd grade of Black Silver High School, there is a group of underworld teenagers who never do anything good. Apart from fighting, they just eat, drink, play and have fun. One day, they received Yinnan's duel book and prepared to deal with them this time. However, the night before the duel, "Shadow" secretly ran to surrender. For this reason, the whole class broke up with "Shadow". Was "Shadow" really scared before surrendering? Or there are other reasons...