This is a fanfiction story set in the Classroom E universe, but with a unique twist. The story features crossover appearances from other smart anime characters, but the main focus is on a group of students in Classroom E who must contend with a traitor in their midst. The traitor is slowly expelling their classmates, and the group of geniuses must work together to uncover and defeat the traitor while also battling external enemies. The ultimate goal is to succeed and advance to Class A. Readers are invited to follow along and see if the group can emerge victorious.