It was first published as individual one-shots in Dengeki Daioh and the Éclair anthology series, before being collected into a single tankōbon volume by Kadokawa Shoten in 2020.

Written and illustrated by Nio Nakatani, Farewell to My Alter collects several of Nakatani's one-shots that were published in Dengeki Daioh and the yuri anthology series Éclair from 2014 to 2019, before being collected into a single tankōbon volume by Kadokawa Shoten in 2020.

[1] The story the collection is named after was initially self-published as doujinshi, before later being republished as a one-shot in Dengeki Daioh as Nakatani's professional debut.

[4] Rebecca Silverman of Anime News Network gave Farewell to My Alter an overall A− rating, noting that the chronological publication order of the works makes for an interesting survey of Nakatani's evolution as a creator, as well as praising the characterization throughout; "Even in the standard RPG-inspired fantasy piece and the magic realism story about literally eating your feelings, there's a real sense of characters who are struggling with who and what they are and how they feel about that.

changes, as it evolves quite considerably from beginning to end in a way that would not be obvious if you didn’t see the stories laid out one after the other.