Screenwriter Kang Eun-kyung, known for Romantic Doctor, Teacher Kim, participated as creator of the drama, while the screenplay itself was written by Joo Hwa-mi, author of Marriage, Not Dating.

According to director Jo Hyun-taek, the series 'has elements of fantasy as can be felt in the word hero, but describes a quite realistic story', with the clash between fantasy and reality being the work's unique charm.

For Jang Ki-yong, this was his first television production after completing mandatory military service.

Actor Choi Gwang-rok had to gain thirty kilos to play his character, stating that the weight gain process was not easy at first, but that he appreciated the opportunity to live this role.

Actress Claudia Kim went through long makeup sessions to represent her character Bok Dong-hee as an obese woman.

The series was well received for its innovative theme of a dysfunctional family with superpowers and for the story of the two protagonists saving each other.

The series' audience failed to surpass the 5% mark at the national level, coming close to it only in the final episode, which reached 4.9%, being the most watched of the season.