Akebonobashi Sansaro Hakuhou Kissashitsu nite

Every Friday after school, a male student, Mr. Kinryo, is always to be found in the "Hakuho-do" coffee shop.
People have been asking him for advice for some time now.
Because he always solves their problems brilliantly!
On the other hand, what is the reason why Mr. Kim Rong is at Baekho-do on Fridays?