Iwabee Yuino

Iwabee is a Konohagakure genin. While a standout during his entire time enrolled in the Academy, his poor academic test grades lead him to be held back repeatedly. He is a member of Team 5 along with Metal Lee and Denki Kaminarimon.

On the day of the Seventh Hokage's inauguration, Iwabee watched the event beside other villagers. Dreaming of becoming a mighty and famous ninja, Iwabee soon enrolled in the Academy. While consistently scoring top marks in all his various ninja classes, his aversion/dislike of book studies not related to ninjutsu but still curriculum-required lead him to get equal consistence poor written grades. This made him fail the graduation exams twice and ultimately forgotten by his former friends who went on to become full-fledged ninja. Blaming the new shinobi era's pursuit of both studies and physical skills for him being held back, Iwabee became rebellious. He would regularly skip classes completely and become harsh if not confrontational with the younger students.

(Source: Narutopedia)