Mori is a slime mold boy - quiet, curious, and very good at solving problems.
When Mori finds himself lost deep beneath Tokyo in the world's busiest subway system, he feels overwhelmed. Trains rush. People hurry. Everywhere is noise and motion.
But Mori does what slime molds do best: slows down, explores, and connects. At each stop, Mori stretches out into the city above: a steamy dumpling shop, a glowing arcade, a peaceful garden. With every new place, he learns something about paths, patterns, and how everything connects.
With patience, persistence, and a little slime, Mori may just solve the subway - and show that even the smallest, quietest problem-solvers can find their way in a big, busy world.
Inspired by the classic Tokyo subway slime mold experiment, this book explores how slime mold has helped scientists solve complex challenges and continues to inspire innovative solutions across a wide range of fields.