In "Sister Princess," the skill levels of the cast members are too
contrasting, so it makes a good singer like Nana-chan stand out too
easily. Unlike "Sister Princess," almost all the voice actresses for
"Memories Off" are fairly good at singing. If I had to pick out two
from the group, they'd be Mizuki Nana and Chiba Saeko. I bet they're
in some kind of internal competition with each other. Nana-chan
seems to be winning since her character is more popular. I also
noticed that Nana-chan tends to get the main part for songs arranged
for all the cast members to sing together. I think Nana-chan is the
better singer, but I like Chiba-san's singing as well. Chiba-san's
voice tends to work better with the songs written for games like
Memories Off, so Nana-chan better be careful ;) I hope Nana-chan
gets more songs that really bring out her own style.