一ノ瀬家の大罪 (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Tsubasa Ichinose is a junior high school student who lost his memory in an accident. He meets his family safely, but they too had all lost their memories in the accident. Tsubasa and his family bond over false memories in order to regain their memories, but when they return home, they realize that they are not the family they thought they were...?

(Translator: DeepL)