[A Cappella] Polka Counts Her Own Tempo to Sing "CHE.R.RY" Without a Cajón

After realizing she has no cajón, Omaru Polka sings YUI's "CHE.R.RY" a cappella. With no instruments, she counts numbers out loud like a metronome to keep the beat, ending with a self-deprecating "No, that's just an excuse."

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