Well, my guess to why it fit is that she have a cheerful spirit, but at same time, bears the burden of an entire clan (as you can hear in other instruments).
hey this is really fantastic! my only pieces of critique is that one, the supporting rhythm synths around 2:02 are farther forward than the actual melody, and it detracts from the rest of the mix having the rhythm actually above the melody; they're a bit too loud overall but it's especially prominent in that segment of the track (and where it plays earlier). the other is the kick drum hit at ~2:25 is layered really heavily and actually peaks the mix and creates some crackling, which doesn't happen on the followup hits. it's pretty jarring since otherwise i feel the percussion is actually mixed a bit low and missing some snap to it. this is still a great listen, i generally prefer this instrumentation to the oras version. seriously, really good work