Mikai Yui can be considered a high school girl detective, in a way. Despite being 19, she is still repeating her final year of high school for the third time. Though it may seem like tragedy strikes around her often, she eagerly displays her expertise and clumsily stumbles upon the victims. Her "assistant," nicknamed "Rinrin," is merely a classmate and not a true friend or assistant, but possesses a strong ability to solve murder mysteries. During a school trip, their first case appears when a maid discovers a man murdered in his hotel room. [tethysdust]
