Case Closed season 12

The twelfth season of the Case Closed anime was directed by Yasuichiro Yamamoto (until episode 332) and Masato Satō (since episode 333) and produced by TMS Entertainment and Yomiuri Telecasting Corporation. The series is based on Gosho Aoyama's Case Closed manga series. In Japan, the series is titled Detective Conan (名探偵コナン) but was changed due to legal issues with the title Detective Conan. The episodes' plot follows Conan Edogawa's daily adventures.

The episodes uses five pieces of theme music: two opening themes and three ending themes. The first opening theme is lit. "La La La of the Wind" (風のららら) by Mai Kuraki until episode 332 The second opening theme is lit. "The Paradise I Promised You" (君と約束した優しいあの場所まで) by U-ka Saegusa in dB for the rest of the season. The first ending theme is lit. "Dreaming of tomorrow" (明日を夢見て) by Zard until episode 328. The second ending theme is lit. "Your Light" (〜君という光〜) by Garnet Crow until episode 349. The third ending theme is lit. "The Smile on your Sleeping Face" (眠る君の横顔に微笑みを) by U-ka Saegusa in dB for the rest of the season.

The season initially ran from April 21, 2003, through February 23, 2004 on Nippon Television Network System in Japan. Episodes 316 to 353 were later collected into ten DVD compilations by Shogakukan. They were released between July 22, 2005, and November 25, 2005, in Japan.