Erika Amano is a central character in the anime series 'Kakkou no Iinazuke' ('A Couple of Cuckoos'). She is a high school student and an internet celebrity who is charismatic, cheerful, and occasionally impulsive. Erika's life takes a dramatic turn when she discovers that she was switched at birth and is supposed to be engaged to Nagi Umino, another student who was also part of the swap. Throughout the series, Erika navigates her unexpected engagement, family dynamics, and developing relationships, while maintaining her social media presence. Her character adds humor, drama, and intrigue to the story.