I am having a tough time trying to remember the name of this manga. It had three high school friends and they woke up in an alternate reality where people play games to survive. The games difficulty is determined by a something and can determine the difficulty by a deck of cards.
The first game was something like 2 of diamonds and they had to get fortune cookies and survive a bunch of flaming arrows (Which they did). One of the group guys is smart while the other of the group guys is really brave then they have a 3rd member who is worthless it seems.