We created Choostory, an interactive digital picture book that empowered children to flip through stories by choosing the protagonist’s actions. With no right or wrong answers, each decision naturally introduced behaviors related to the Sustainable Development Goals (SDGs) and encouraged reflection through its multi-ending format.

Instead of presenting the SDGs as a lesson, we designed the experience to be a playful, immersive story. Illustrated scenes and light game mechanics were designed to keep children engaged while helping them connect abstract ideas to personal choices.

In addition, we launched free workshop materials online, making it easy for families and after-school programs to use Choostory in group settings. We also developed teaching guidelines for classroom use, spreading access and impact for educators and students across Japan.