Melancholy, unmotivated Kiyotaka Ayanokouji attends his first day at Tokyo Metropoiltan Advanced Nurturing High School, a government-established institution for training a generation of Japan's best and brightest. In this school, it is said, everything is decided based on merit, which includes the generous monthly "point" allowance students can spend at local shops. As Ayanokouji begins navigating this system, he also nurtures curious relationships with aloof fellow outsider Suzune Horikita and the terminally gregarious Kikyou Kushida.

Kiyotaka and Kushida go with Sakura to he mall where Sakura will try to repair her camera. After that Kiyotaka talk to Sakura about Sado's situation and should she talk about what she saw.

As part of a special test, the school has brought the students to an uninhabited tropical island where they must now live for a week. Their performance on the test can have an enormous impact on the point standings of the four classes.

Class D has achieved a degree of unity in facing the special test, so Ayanokouji and Horikita head out to see how the other classes are getting along. Class B is working together to make a comfortable life for themselves, while Class A remains secretive.

With the panty thief incident already eroding Class D's trust, Horikita finds her leader key card stolen. While they try to figure out who did it, the base camp is thrown into chaos with a new incident of arson.

Survival test is coming to the end. Things don't look well for 1-D. Key card is stolen. And now Suzune is forced to withdraw due to her sickness. Kiyotaka will try to turn things around.