Classroom of the Elite 2nd Year Vol. 3

The special exam on an uninhabited island has begun! For two weeks, students will do their best to visit checkpoints and complete challenges to gain points with their groups. Well, except for Ayanokouji, who has opted to tackle this exam on his own... or has he? Nanase, a first-year student from Class D, breaks off from her own group and asks to tag along with him, but there doesn't seem to be anything in it for her. Just what is this under-classman's goal?