"Yume o Shinjite" (夢を信じて, lit. Believe in Dreams) is the ninth single of Tokunaga Hideaki, which was released in January 16, 1990. The song was the ending song of the first 26 episodes of the anime television Dragon Quest.

The song reached number 3 on Oricon's single's chart, and ranked first in the annual chart of the radio show "Ten Best National Songs". The single was originally planned for release on January 15, but since that day was the Japanese holiday Coming of Age Day, the release was postponed until January 16 because of fears that primary school children who are Dragon Quest fans would overwhelm record stores.

The song was included in a 2011 charity album produced in the aftermath of the 2011 Tōhoku earthquake and tsunami.

All lyrics written by Hitoshi Shinohara; all music composed by Tokunaga Hideaki.

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