Description：Tokyo Metropolitan Koudou Ikusei High School is a dream school that boasts a 100% admission rate and employment rate, and pays out the equivalent of 100,000 yen per month. However, it is a school that values meritocracy, where only a select group of students with outstanding grades are treated well. In the third semester, Ayanokouji and his friends, who were promoted from Class D to Class C, head to the Forest School. A special exam called "mixed training" is held there, which is jointly conducted by all grades. Just as the name suggests, the exam is conducted by separating boys and girls into groups composed of mixed students from multiple classes, and the groups are graded as a unit. If you don't cooperate with students from other classes, who you have always been competing with as your enemies, you won't be able to get high scores, and most importantly, some people in the group that don't reach the score line will drop out. The turbulent third semester is about to begin.