Fallin'是marina演唱的动画《Charlotte（夏洛特）》的插曲。Charlotte是一部由游戏制作公司Key与ANIPLEX联合企划、P.A.WORKS制作的日本原创动画，也是麻枝准自2010年的《Angel Beats!》以来时隔五年再次参与剧本创作的动画。放送之前特番《Charlotte～新的“命运”的开始～》于2015年6月20日放送，在6月29日则放送有纪念特番。电视动画于2015年7月4日首播，全13话，另有TV未放送的特别篇授予BD&DVD第7卷中。
Fallin'歌词：
Looking up high found a steel tower
Wondering how I would feel if I fall down
Was it a dream I saw deep red
Chasing for what's far ahead always yearning
Don't know why but the beauty
I really want may seem to be awkward to someone's eyes
Looking down below ground top of the tower
Fear takes over my heart and my knees won't stop shaking
Then I realize I'm falling down
Why do the things I have loved always breaking
Don't know why but the beauty
I really want may seem to be ugly to someone's eyes
Chasing for what's far ahead always yearning
Don't know why but the beauty
I really want may seem to be little crazy in sight
And now I'd be flying high to the sky
Lifting me to the yonder
Something brought me here so far from home
But I'm not cold at all
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