Lin Haoran came to Beijing to work hard, and formed a temporary family with his unique roommate Jiang Shuwan and his hometown friend Wang Dapeng. They experienced farce and a chaotic life under the multiple pressures of struggle, relationship, and workplace. As time goes by, the three of them each encountered career changes, emotional difficulties, and family pressure, and gradually grew up while playing and accompanying each other. Although they have different identities and backgrounds, they face the loss, confusion, opportunities and hopes of the city together, and ultimately gain self-growth and rare friendship and warmth between each other.