Mom, I swear I'm not lying

あらすじ

On New Year’s Eve, 10-year-old Lily begged her doctor mother for help. Her Honesty Bracelet blazed red—Liar. The mother turned up the electricity and left. Three days later, Lily was dead. Her diary held the truth: Only her little sister’s bracelet was fake, always green. A mother believed the wrong machine… and killed her own child.