In a world full of unexpected twists and turns, everyone experiences a phase in their lives that is a mixture of joy and sorrow. This is a tale of individuals in their early twenties, specifically four close friends. Guan Zheng is determined to embrace the future with courage, Xiao Jing is a spirited younger companion, Pin Yu exudes a sweet and feminine charm, and Ah Xiong is characterized by his sincerity. Each of them has left their homes for personal reasons and now share a living space together. Their lives take a new turn when they befriend Yan Yi, a young woman, and encounter the sophisticated Wei Han Ren.