Akebonobashi Sansaro Hakuhou Kissashitsu nite

Every friday after school, a student named Kinyou can always be found at the Hakuhodo Cafe. Over time, people have started bringing their troubles to him, simply because he always manages to solve them with absolute flair! But amidst all these brilliantly resolved cases, one mystery remains: just why exactly is Kinyou at Hakuhodo every Friday? (Source: Hakusensha, translated)