Vocab InfoA17 Noun怪事件(かいじけん)mystery caseDetailsExamples怪事件mystery caseDetailsExamplesDictionary DefinitionNoun1. mystery caseAll Forms怪事件 【かいじけん】DetailsAudioPlayExamplesThere are no sentences available for this contentHold tight, context sentences are coming soon!Self-Study SentencesStudy your own way!Add sentences and study them alongside Bunpro sentences.Try Bunpro