"Unrequited Love" is a newly written song by HY's Nakasone Izumi, a ballad that realistically depicts the pain of unrequited love. "Proposal" is a song filled with feelings of promising a future with a loved one. It is a love song composed by Tada Shinya, with lyrics by OZAKI and FUJIMAKI. A gem of a pop song, with the theme of love between two contrasting but inevitable people.

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