Meitantei Conan OVA 08: Joshikousei Tantei Suzuki Sonoko no Jikenbo

Sonoko Suzuki is writing a murder mystery for a school play, naturally casting a brilliant high-school detective named Sonoko as its heroine. There is only one problem: she cannot decide who the killer should be or make the deduction at the heart of the story hold together.

When Haibara points out holes in the mystery, Ran calls Shinichi for help, while Conan and the Detective Boys also get drawn into fixing the script. Soon a fictional case becomes a lively battle of ideas, with everyone trying to build a mystery worthy of Sonoko's grand detective debut.