Reading time is Lukas's favorite time at school. But then his teacher, Mrs. Hoehlmann, reads a story that gives him a stomachache. More specifically, it’s one particular word that hurts him, but no one seems to understand that except for his friend Amira. However, his family comes to his aid. The word that causes the stomachache is an exciting story that not only shows children how hurtful racist and discriminatory language can be, but also how parents, teachers, and, not least, the children themselves can actively advocate for respectful coexistence. At the same time, this book serves as a practical intervention in the current debate about racism in children's and youth literature and is the first volume in a series about the Black German twins Lukas and Lennard. Nancy J. Della tells a story openly, empathetically, and encouragingly.