"Secret Base (Kimi ga Kureta Mono)" (secret base 〜君がくれたもの〜, lit. "Secret Base (What You've Given Me)") is a song by Japanese all-female band Zone, released as their 3rd single on August 8, 2001.
"Secret Base (Kimi ga Kureta Mono)" is composed and written by Norihiko Machida. The single was released on August 8, 2001 as Zone's 3rd single under Sony Music Records. The song was used as the theme song in the television drama Kids War 3. The single was released with "Shin Boku wa Magma" as the B-side, with composition by Morika and lyrics by Zone.
"Secret Base (Kimi ga Kureta Mono)" reached #2 on the Oricon Weekly Singles Chart. It ranked #8 in the top 10 nationwide songs of 2002 by JASRAC. In 2019, the song was certified triple platinum by the Japan Record Association.