Title: Cheerful Amnesia
Japanese Title: 明るい記憶喪失
Edition: Kindle, Paperback
Author(s): Oku, Tamamushi
Having lost her memories of the past three years, Arisa Suzuki is surprised to learn that Mari Satou is her girlfriend. While Mari worries Arisa no longer loves her, their reunion makes it obvious that it's love at first sight for Arisa all over again. Wanting to rekindle their bond, Mari endeavors to remind Arisa about their experiences—from their first meeting to their first kiss.
Yet, the task proves difficult, as Arisa can no longer do many things. This becomes particularly prominent when Mari describes their shared sex life. In the past, Arisa was very dominant in their relationship, often being the initiator. However, lacking the experience she once had, Arisa is now more timid than the person her girlfriend describes, causing her to envy her pre-amnesiac self.
Thus, the two begin to reconstruct their relationship, devotedly putting in as much effort as they can for the one they love most.