Ayu's late friend

[Delirium-Zer0]

Actually, offhand I do think that it was the kanji and not the english letters o_O

You know, she MIGHT have been talking about Natsuki if it was the kanji, since "aneki" is a fairly standard nickname for a best female friend o_O

...Just looked, and you know what, she DID use the kanji!

I dunno if that necessarily means anything though cuz she used the kanji for Bancho also (usually written in english letters in her thanks).

This is so confusing x_X

She does use her assigned nicknames for people when talking about them in her messages though (like Bancho and Mommy and Mama), so I don't see why Aneki would be any exception.