Story: 9
The protagonist is relatable, though his thought process is unorthodox and sometimes things are just too forced. However, this manga takes real attention to detail and it is possible for the reader to come up with conclusions even before the protagonist. An example of this is the magic trick made by Kamishiro-sama to deceive Kokogori in the Gambling Cruise. Some details are hidden in the images, and there are lots of variables to think of while reading the manga, but it succeds in nit being too hard to understand.

Art: 7
The manga art could be better, and the author shows their talent in the beginning of chapters with astonishing stuff, but sometimes the artstyle is just average and there is some fanservice and ecchi, negative points in my opinion. However, there are hints in the visuals that can lead the reader to conclusions, which is nice.

Character: 8
Characters are sometimes deep, sometimes shallow. As it is an ongoing series, there may be space for development in the future. The fact is: characters are rarely forgotten and their development is sometimes shocking.

Enjoyment: 10
The work put by the author in the manga is just overwhelming. It is not truly original, though special in its way. Just enjoyable and fun, you will definetely feel good after you understand something complicated.

Overall: 8.5
I'd recommend Tomodachi Game to any friend. Truly great