[AOII Angel]

I think it's nice when big/lil sister combos work out to be great friends, but the purpose of a Big Sis is to give the new member a mentor. In AOII, she also vouches for the new member. If you aren't best of friends, at least, the Big Sis should be available to answer questions and should take an interest in making sure her lil's new member period is successful. If she can't do those things, she has no business being a big sis.