Information about Robin was first released on March 12, 2024, when she was described as a renowned singer from the fictional planet of Penacony. Information about her gameplay was released on April 30. as well as a trailer called "If We Had Wings" detailing the backstories of Robin and her brother,
Sunday. In the trailer, younger versions of the two are seen as Robin reassures a group of children while telling them a story. Other information about her backstory and lore, particularly her childhood, was revealed in the trailer as well. On May 7, miHoYo released her combat trailer, called "Sway To My Beat", which pictured Robin walking through the streets of Penacony and introduced one of Robin's fictional songs. She first appeared in version 2.0 of the game as a
non-player character, and was released as a playable character in version 2.2 of the game on May 8. Robin's speaking voice is provided in English by Alice Himora, in Chinese by Qian Chen, in Japanese by
Kaori Nazuka, and in Korean by . Her singing voice was provided by Chevy in all languages. Nazuka said in an interview that although Robin was beloved by her people, she was not content with that and wanted as many people as possible to feel happiness through her songs. She said that Robin has a "childlike innocence" about her. She added that she was careful not to change the way Robin's attitude sounded when interacting with different characters, aiming to keep her behavior consistent. Nazuka added that Robin was very strong, but that she would not impose that strength on others, hence Nazuka made sure to use words that came across as well-refined and gentle. Regarding the relationship between her and Sunday, Nazuka thinks there is a fundamental difference between Robin and Sunday's understanding of freedom and protection. This was already reflected in their childhood discussion about the happiness of caged birds: Sunday believed that being loved in a safe environment was happiness, while Robin believed that birds should find happiness in free flight, even if they face the unknown. Despite the difference in their views, Robin still deeply loves her brother, and she especially cherishes the childhood memory of singing on a cardboard box with Sunday. Even her later singing career and fighting spirit stem from that. Nazuka thinks that deep in Robin's heart lies a contradiction in that she sings both for her fans and for her brother, and that this complex emotion has become an invisible shackle binding her.
Music miHoYo also released an
extended play (EP) of Robin's songs on May 9, 2024, called "INSIDE" (). At first on the extended play were three songs, all sung by Chevy as Robin. On June 22, the release date of Version 2.3, the fourth song "Had I Not Seen The Sun" was also released, in China in the same extended play, and worldwide as a separate single. "INSIDE" topped more than 10 music charts. Singles from the album charted on 14
KuGou music charts for a total of 21 appearances. The total number of listens on
QQ Music exceeded 10 million on the day of the album's release, and over 30,000 copies were sold, 10,000 of which were on the first day. An official documentary revealed that the game's composers sought inspiration from their imagination to create the music. In an interview with
Famitsu, the development team discussed the creative concept behind the songs. Regarding "Hope Is the Thing With Feathers", the team explained that the song is intended to faithfully portray Robin's life journey. The song portrays her as a bird protected within a cage, lost and uncertain. However, she later broke free from her restraints and flew out from her comfortable nest, becoming a renowned singer. At the end of the Penacony storyline, after defeating Sunday alongside her friends, she resolves to take her brother's place in protecting Penacony, using the power of Harmony to spread her song to all things in the world. As for "Sway to My Beat in Cosmos", the team described it as an emotional and narrative continuation of "Hope Is the Thing With Feathers"; if the latter represents Robin breaking free from her shackles and exploring freedom, then the former depicts her having already embraced that freedom and bravely stepping onto an unknown journey. == Appearances ==