Welcome to the Classroom of Strength Supremacy 4

The first half of the special exam held during the summer vacation - Survival on an uninhabited island ended without incident. The exam stage in the second half was moved to a luxury cruise ship, and the content turned into a brain test that tested thinking ability. The school compared all students from Class A to Class D to stems and branches and divided them into twelve groups. The students had to find the only "preferential recipient" in each group. The students were very shocked. Katsuragi, Ryuuen and other powerful people in each class saw through the true purpose of the school exams and began to take action secretly. On the other hand, Kiyotaka discovered something unusual about his classmate Karuizawa who was assigned to the same group.