The B-side of the single, "Mamotte Agetai" (守ってあげたい, I Wanna Protect You), is an acoustic cover of the Yumi Matsutoya song of the same name.

The music video was shot by director Shūichi Banba (番場秀一).

She begins to grow, and sings in places such as a high branch or above the forest, getting increasingly larger.

The scene pans out, and it is shown that the hole is the heel print from one of her missing shoes.

[4] As of April 20, 2010 the music video for "Breaking Hearts" has been viewed 196,000 times at the two official Universal channels on popular video-sharing website YouTube.