Man is an animal that makes bargains: no other animal does this—no dog exchanges bones with another.

3. Man is an animal that makes bargains: no other animal does this—no dog exchanges bones with another.(人間は取引をする唯一の動物である。骨を交換する犬はいない)

Canon

Thanks to a lot of hard work and scheming, Class D managed to get surprisingly high scores on their midterm exam. But when a student fails a single test, Ayanokouji makes one final play to save his classmate from expulsion. (Source: Crunchyroll)

Aired on: 7/25/2017