This was gonna be Tsukasa but Macha seemed a better fit. Kinda like with the Chii TF .hack spurred a lot of "the heck am I" thoughts, which is why I was going to go tsukasa at first buuuuuuuuuuuuuuuut with what happens with them it seemed a little odd to go that way, least personally. So macha! she's a bit of a blank canvas only really watching tsukasa but still a fun character, specially design wise.
Natsume was a close second pick, but with what happens to her?? REALLY not a cahracter to go with qwq; she gets so fucked up in GU xD