The girl detective group served their academy for a long time, leading them to be well-known and respected. All of their achievements, however, proved that they can win to any obstacle standing on their way—friendship-wise and when it concerned their intelligence. But when one day, all of them lose their precious Toys, they become the school's laughing stock; losing all their VIP privileges, even their beautiful suite, Milky Holmes has to face a huge challenge. Losing Toys might be easy but how about re-gaining them?