Kakegurui has been one amazing revelation.

I started reading this manga 'cause I was fascinated by the art but I didn't expect the story to be so good too. Here's why you should read this series:

Story: 9
Games. There are plenty of series about games but you won't find one darker than this one. The story is set in this school where your social status, school life, and your whole life is determined by how good you are at gambling. You can play everything, from rock-paper-scissors to something more dangerous like Russian Roulette. If you manage to win you gain respect, other than enormous amounts of money. If you lose you become a "pet", an insignificant student that everyone can bully and it won't be easy to come back being a "human". The villains are the Student Council, a group of students who rule the school and has created the pet system, ruled by the pragmatic Student Council President.
The story begins with the male MC losing a game and becoming a pet, until the real MC come and save him, which lead us to the characters.

Characters: 9
"Madness" is the key word to describe characters of this series. Starting with Yumeko, the protagonist: she looks like a lovely school girl but she shows her true nature when gambling. She's crazy for gambling and risk, toying with their opponents in order to enjoy the thrill as much as she can. What I like about her is that she's not evil, she's just crazy for the thrill. Watching her suddenly showing this part of her personality out of the blue is amazing.
As for the other students they're well developed.
The only important male character, Suzui, is a simple guy who starts the series being a pet, being saved by Yumeko and then thanks to her he becomes stronger as the story progress.
Mary Saotome is the bully who made Suzui a pet but later become an ally.
As for the villains, the student council, basically they're all crazy. Everyone of them has their illness for gambling, some of them reaching crazy level like Midari, and on top of them the Student Council President, a mysterious and feared girl who leads the whole thing.

Art: 9
Art is stunning. I love the expressions characters make while gambling, in particular Yumeko's "crazy" moments are a pleasure to watch. Character desing is good and there is some funny moment too, altough not very common.

Enjoyment: 8
I'm currently at chapter 17. I look forward to see how the story progress. I'm sure it won't disappoint me.

Overall: 8
I give this an 8 that could become a 9 depending on how the story ends.
By now I'm really enjoying this series, I recommend you to read it.
If you like psychological stories and crazy characters, everything mixed with an interesting story and universe, you won't be disappointed.