Tomodachi Game or Friends Game is a very short drama, only 4 eps 20+ min. each, and it has an open ending because there are 2 movie sequels. Nothing much happens in this drama and you really have to suspend your disbelief a lot but...

Holy smokes is it suspenseful! And the suspense doesn't result from heavy action or a bloody massacre but from a very simple question: Can you trust your friends?

The setting is simple: Five friends are set up to play a game. If them win, they can go back to their everyday high school life. But should they lose, they will have to shoulder a 200 mil. yen debt. Winning is easy - if you can trust your friends not to betray you. But money is... money and their initial trust quickly starts to crumble.

Yoshizawa Ryo absolutely slays it as the lead, Katakiri Yuichi. Not only is he insanely pretty - like GOODNESS GRACIOUS pretty - he carries the whole drama because we watch it from his POV, he's the only one we can be sure of.

This drama also features Yamada Yuki. Playing a genius student, the top of the class. Heh!

The drama shows only the set-up and the first game, though, and to settle the debt, the five friends have to pass - and win - three games. Thus the open ending. I guess the first sequel features the first game and the second movie the second one? Probably? Anyhoo, it's better to have both movies handy because the drama ends on a cliffhanger.