I'm sorry, but everytime I watch the episode of Higurashi (Episode 5 I'm sure), I always crack up when she thinks herself as an elegant woman that everyone admires when she grows up. Mostly because in watching Umineko, Lambdadelta is like her freaking twin xD Right down to hanging around with Bernkastel/Rika.
EDIT: I know full well that Lambdadelta is connected to Takano, not Satoko, but her relationship with Bern and her laugh reminds me of Satoko, therefore I made this poster.
Lambdadelta (c) Umineko no Naku KoroNi
Satoko (c) Higurashi no Naku KoroNi