(Note there might be Spoilers !!)
Though both series give similar vibes, Kyouso no Musume and Girl from Nowhere are very different from each other , just that the initial settings ( and only few aspects) are slightly similar.
Nanno of Girl From Nowhere displays supernatural abilities many times. Also her family details were never known and she changes to different school in each episode.
Kiritani Sara doesnt exhibit any supernatural ability and of course she is very keen about minute details and intelligent as Nanno. Also there are possessiveness and revenge elements in this plot and they are main aspects in this series. Note that Kyouso no Musume are of bit shorter length. And she continues in the same school throughout the series.
Though both series give similar vibes, Kyouso no Musume and Girl from Nowhere are very different from each other , just that the initial settings ( and only few aspects) are slightly similar.
Nanno of Girl From Nowhere displays supernatural abilities many times. Also her family details were never known and she changes to different school in each episode.
Kiritani Sara doesnt exhibit any supernatural ability and of course she is very keen about minute details and intelligent as Nanno. Also there are possessiveness and revenge elements in this plot and they are main aspects in this series. Note that Kyouso no Musume are of bit shorter length. And she continues in the same school throughout the series.