"Secret" (シークレット, Shīkuretto) is Maki Goto's 17th single.

It was released on April 11, 2007 in both regular (PKCP-5084) and first press (PKCP-5082～3) editions.

The Single V DVD was released two weeks later, on April 25, 2007 with the catalog number PKBP-5071.

[citation needed] The c/w of this single, Inner Child, is used in the Showa Era song theater play Yokosuka Story.

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