idealistic person

is a person who makes herself to think that she is ideal.

a little sister's function

hmmm.. cant think of one.
a big sister should control on what you do.
a little brother should adores you.
a big brother always protects you.
but what this little sister can do?

i think all she can do is.
to remind you about how important your life is, because she really cant live without you.