This collection is inspired by the encounter with a concrete river. It was an unexpected occasion, one night, when I saw a river of concrete flowing down the metropolitan street. The streetlights cast their shine upon the flowing gray. I step into the river, and the hem of my trousers and boots soak up the gray water. The concrete starts to stick to them, becoming solid and heavy, eventually forming a beautiful pattern that weighs down my steps. This entire experience reminds me of the concept of memory. Memory flows into us like a concrete river, drenching our emotions.