Z-kai is launching a special campaign for elementary school students from May 1 to June 30, 2026. By requesting information for Z-kai correspondence courses, parents can receive a free 'Honebuto Work' study book tailored to each grade and an original dinosaur-themed clear file. The study book focuses on developing critical reading skills through sentence-based problems in subjects like Japanese, math, science, and social studies. This initiative aims to support effective home learning and academic growth for young students.