The 5th volume of the endlessly bright memory loss comedy that is trending on social media! Due to memory loss, the protagonist has forgotten the memories of the past few years, but instead of worrying about that, they are excitedly living a fresh life with their partner. Finally, Arisa and Mari are set to get married, but on the day of the wedding, Arisa unexpectedly starts to regain her memories. The story of the two before they lost their memories is revealed in this endlessly bright memory loss yuri comedy, past arc!