Becca (Liu Xinai), 29, based in China, is passionate about creating playful solutions for climate resilience. Her drive comes from empowering communities through creativity and innovation. She founded Happy Power, a project that transforms human play into clean energy and explores a Web3-based behavioural energy economy. She also co-created Playground without Walls with children in underprivileged areas. Her work blends sustainability, technology, and community co-creation to inspire global change.