"Who am I?
I'm the president here....a collector of curious stories"

13 club is a psychological manga (it might not be listed as one, though) that manages to shed some light on the dark side of human psychology.
The protagonist of this manga is Kudan, who runs a website named 13 Club.
He loves to collect urban legends, and other weird stories from different parts of the japan.

Story: 8

The manga contains 5 different stories, each having its different protagonist, and cast of characters. One thing that remains the same in every story is the appearance of Kudan, who loves listening to their stories.
In the arc 'Investigation act', he helps the protagonist by solving the mystery.

Art: 8

The art is at its peak in the first chapter, but quality gets somewhat lower after that. But it's good enough, and neat and clean.

Character: 9

Kudan is a likeable character. You'll love his socializing skills, his knowledge, his sense of humor, and his mysterious personality.
The manga doesn't give much information about his background.

Enjoyment: 8

I loved the manga. The best arc is 'Investigation act'.

Overall: 8

If you love psychology then this manga is for you. You'll get to know about dark side of humans.
There is even a reference to 'milgram experiment'.