After a series of bullying caused some students to nearly break down, JiKwan High School staff has decided to conduct a test during a field trip to determine if some students could be depressed enough to try to attempt suicide.

The test is simple; there are three differently colored feathers. Each has a specific release trigger.

White feathers are released when the right cord is pulled.
Red feathers are released when the left cord is pulled.
Black feathers are automatically released after a few seconds if neither cord is pulled.

Those who release the white feathers are people who are content with their lives, while red feathers are for those who wish they had more or are angry with what they lack.
Those who have black feathers released... are considered to be those who are bullied to the point where they hate their life, and are imaging that there is no net below to catch them.

Those with black feathers... are considered suicidal.

JiKwan High School conducted this test with two other high schools.

There we three with black feathers.

JiKwan High School had one of them.