Yoshii Kazuya is a fictional character from the manga series Baka to Test to Shoukanjuu, created by Kenjirou Hata. He is a high school student known for his average intelligence and laid-back personality. Kazuya often finds himself in humorous situations due to his lack of motivation and tendency to procrastinate. In the series, Kazuya is part of Class F, which is considered the lowest-ranking class at his school. The story revolves around the unique battles between classes using summoned creatures, where Kazuya and his friends strive to improve their class's standing. His character adds comedic elements to the narrative, making him a relatable figure for readers.