On the day they graduated from high school, three teenagers shared the darkest secrets in their lives with each other, but each of the words they said was more terrifying than the other. Regardless of whether these secrets are true or not, their graduation commemorative activities lead to a night escape... Two short stories "The Fugitive" and "The Guarantor" are also included. The feature of this book is that Nine Swords is a master storyteller, and short stories are especially good for him. In the book "Black Education", there are three wonderful short stories, full of unique knife-style style, the accident of flipping and flipping again!