Tengu no Yomeiri

A kind-hearted tengu asks a delinquent to teach him how to be evil. Sunao has long been criticized for being too gentle for a tengu, so he sets out to learn from a human delinquent instead. When Sunao witnesses Touya being mugged by another delinquent, he asks the attacker to teach him rather than stepping in to help. Touya initially refuses, but Sunao’s naivety makes it difficult for him to simply leave the tengu alone.