ENDLESS SKY is such a good sendoff song. It does what it's meant to do really, really well
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Tsumetai Kaze to Kataomoi is good too, but I definitely prefer ENDLESS SKY. The atmosphere (heh) and the lyrics are gorgeous.
Also, something I'm not getting is the Masaki hype. She's not that special to me. I'm not a fan of her personality at all (she just seems like a whiny little kid) and in looks she's really not my type (she's not bad looking by any means, I just don't know how to word this without sounding like an ass). I get that she's a good performer and stuff, but I'm not seeing it. I guess she'll never grow on me. Oh well, at least she's a bit more interesting to watch than Mizuki...