Koi wa Thrill, Shock, Suspense

"Koi wa Thrill, Shock, Suspense" (恋はスリル、ショック、サスペンス) is a song by Japanese singer-songwriter Rina Aiuchi. It was released on 25 October 2000 through Giza Studio, as the fourth single from her debut album Be Happy. The song served as the theme song to the Japanese animated television series Case Closed.

Commercial performance
"Koi wa Thrill, Shock, Suspense" peaked at number five on the Oricon Weekly Singles Chart, becoming Aiuchi's first top ten single. The single has sold 105,260 copies and remains as the singer's second best-selling single, behind "Navy Blue" (2001).

Certification and sales
! scope="row"| Japan (RIAJ)
 * Gold
 * 105,260
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