Cheerful Amnesia

Cheerful Amnesia (明るい記憶喪失) is a Japanese yuri manga written and illustrated by Tamamushi Oku. It was serialized in Media Factory's Comic Cune from June 2016, to December 2020, and is licensed in English by Yen Press.

The series follows Arisa, an amnesiac who is excited to experience dating her girlfriend after having forgotten all their time together.

Synopsis
After Arisa loses her memory of the past few years due to amnesia, her girlfriend Mari worries what that will for mean for their relationship. However Arisa is not bothered by her amnesia, instead she is excited to once again experience all the first times that happen between girlfriends.

Publication
Written and illustrated by Tamamushi Oku, Cheerful Amnesia  was serialized in Media Factory's Comic Cune magazine from June 27, 2016, to December 26, 2020. The series was collected in six tankōbon volumes from February 27, 2017, to January 27, 2021.

The series is licensed for an English release in North America by Yen Press.

Reception
For Anime News Network's Fall 2023 Manga Guide, Rebecca Silverman gave the first volume a 3 out of 5, noting that "the four-panel format works well here, although the humor does rely on a lot of repetition that can get a little old.", while Christopher Farris gave it a 3.5 out of 5, summarizing "there should be a place for lesbian love stories to have their own shamelessly stupid, kinda-horny comedies, and Cheerful Amnesia fills that role enjoyably enough." Erica Friedman, the founder of Yuricon, was less favourable towards the premise of the series, noting that "this series could read like a very fun, goofy 4-koma, if one read a page or two at a time. As a volume, I felt so desperately sad for Mari who has the body of her lover back, with the soul of a gaping child inhabiting it."