The Girl Who Lost Her Memories / The Octopus Wiener Trap (S01E05)

Kuroha's younger sisters unexpectedly show up at Sueharu's house to inform him that she has lost her memory. She can't recall anything from the summer break onwards, right at the moment she intended to confess her feelings to him. To make things easier, she proposes to rewind their relationship to the point of her confession and disregard everything that happened during the cultural festival. However, Shirokusa begins to grow wary of Kuroha's peculiar actions...