Whose Baby is it? (Colored) summary: Single father Yiyun is resolute in his pursuit of both acting excellence and responsible parenting, dutifully caring for his young child Rourou alone. What sets their circumstances apart is Rourou's conception, made possible through scientific intervention. However, their stability is disrupted when a wealthy stranger asserts their biological connection to Rourou. To get to the bottom of this peculiar situation, Yiyun embarks on a quest to determine the identity and authenticity of this affluent individual as Rourou's rightful father.