Date Chizuko is a generally unenthusiastic seventh grader who's been sent to stay with her Grandfather. However, her life changes drastically when she becomes a superfan of the local magical girl and is approached by her nemesis.

Chrome issues Berry Blossom an official notice of his intent to commit an evil deed. However, a sudden storm hits, and he loses all motivation to follow through on his villainous declaration. Chizuko is forced to take matters into her own hands.