A book carefully describing the heart of a child suffering from a conflict between best friends. Hana and Yuu are best friends. Today, they are doing their drawing homework together at Hana's. While using Hana's new creyon, Yuu accidently breaks it. At night, Hana thinks about it. She hates Yuu who broke her new creyon and also hates herself who couldn't say anything to Yuu and made the situation awkward. Korean edition translated by Yoon Soo Jeong.