In this must-follow trick-taking game, there are five suits (wings, spears, arrows, fire, and flowers), but the biggest feature is that there are two types of "angel cards (white)" and "devil cards (black)".

If you win a trick and get a devil card, after the round ends, your life points will decrease according to the number of devil cards you got. However, if you can successfully acquire angel cards under certain conditions, you can recover your life points. The game ends when even one player has 0 life points. Wonder how to avoid getting devil cards.