This anime made me think a lot. There is a prophecy that says when the Demon Lord comes back six heroes will be chosen (the Brave of Six Flowers) and they all have to meet up at a temple in the land of howling demons. But when they all meet up there are seven heroes instead of six, and that's were all the thinking work starts.
In a way this is a very interesting anime, plot wise as well as story flow wise. But for me it just didn't get to the point. In fact it felt like a game of cluedo, and with the synopses given you'd expect an epic adventure were the heroes fight the demon lord and someone died, and that caused someone else to unleash a power of epic proportion.
But no, it's just a huge thing about playing detective and blaming everyone around them. So I wouldn't suggest you watch this anime if you have high expectations for it. Just watch it for the fun of it.