Environmental wizard Mo Chizhou, who hates empty talk, actually transformed his grandmother's old rattan suitcase into an AI smart trash can. He teamed up with his tech geek friend Nan Xingluo to try to use image recognition to solve the puzzle of garbage classification. Unexpectedly, the system frequently issued strange alarms for "cemetery old items", uncovering the campus's formalist environmental protection fig leaf. From the first cry of the rattan box to blockchain tracking, he will use hard-core technology and innocent heart to give abandoned things a new life and explore the true way of recycling.