@grips I thought her was Chika, from the old anime, not from Chika Fujiwara, which seems to be the only "Chika" that ever existed for Google.
Maybe I'm phrasing the name wrong, but I remember in the subs, she being named Chika. I can't find a single pic of her, and the girl in the cover of your new "light" novel it's really very very close.