I highly enjoyed the story of this OVA. While not a high profile crime occurs a mystery does happen and Conan sets out to solve it along with help from Heiji. The story was strong and fun. It was nice to see the gang work on a case that did not involve a corpse or anything along those lines. Struck me as more of a funny story that was meant to cause a few laughs.
The art and music are typical of Detective Conan. Nothing super flashy happened but all in all both were solid.
Due to this having so many characters in it was hard to see any development. More of the characters just have fun and being in an environment that is not overly stressful.
I liked this story overall. I thought the twists were fun and just enjoyed seeing a more normal day in the life of Conan.