Ye Dong carefully plans a snow-viewing trip, hoping to celebrate her mother's birthday and take a photograph of herself against the snowy mountains. Along the way, she is repeatedly expected to give up her coat and her sleeper berth for others. When they arrive, her mother, older sister, and boyfriend leave without even saying goodbye. The travel expenses and thoughtful arrangements she paid for are credited to her sister, Ye Qing. Even the photographs she took herself are published under Ye Qing's name to attract clients. Finally, Ye Dong stops sacrificing herself just to earn other people's approval. She ends her relationship, moves out of her family home, reclaims ownership of her work, and sets off alone toward the snowy mountains. Along the way, she learns to choose people who are truly willing to walk beside her.