Above all else, Chidori Takashiro wishes to return to her childhood, which she has built up to others as the best time of her life. Admitting in Kiznaiver‘s second episode that she loved Katsuhira Agata when the two were children growing up together, Takashiro wants Agata to go back to the happy kid that she remembers, rather than the husk of a human being who appears in the scope of the series’ timeline. Any viewer with half a brain will realize that she still loves Agata regardless, and nearly every action she takes is in service of returning Agata to “who he was” — the person that Takashiro loved.
Not-so-coincidentally, daisies represent a return to childhood or innocence. Takashiro appears to carry a small bunch of purple and white daisies which further symbolize innocence, purity, and true love.