Watch Agni Pareeksha
Agni only wants to do good in school. However, a sudden event causes him to gain superpowers that make his dream a lot less possible. That is because when he gains the powers, he also gains the ability to see evil. He attempts to ignore it at first, but his grades suffer as he can't keep his mind off of destroying criminals. Finally, he gives in to his powers, which he later finds to be a good idea, to defend his school against a green monster that comes from the ocean.