For those who haven't heard of them, should definitely check them out.
Below is their well know music video "The World' and their relatively newer song "Quints"
Here's my attempt NIGHTMARE member, Hitsugi.
He's my bias in the group. He may look intimidating at first glance with the piercings and all that, but anyone whose seen NIGHTMARE knows he's a big goofball, and a sweetheart. He's also (along with some of the other members) has a side band/solo group too called GREMLINS. Had no idea Hitsugi could sing too, since I've become accustomed to him playing guitar only. "Carnival", "Bacchus" are good songs too. I just really like the beat of 故.