Signboard bulbs flicker in empty streets. Butterflies beside the old phone booth are like swirling notes in music. The postcard is printed with an image of your hometown. The city is blue ocean, swallowing night and memory. You get on a train and hear a familiar voice calling: you look back, and see your eighteen-year-old self travelling with a bag, smiling.

A collection of 333 unique illustrations of girls and boys that are made up of numerous special visual traits created by Yu Cai.