All the members appear to know Rei, as he was Sakura's friend years ago. They have a game going on where they use their power to drain power users to death during their turn; however, whomever kills the least amount of people wins.
It turns out that all the Angels are immortal like Yukihina; underneath their clothing, they have the same bandages and symbols like Yukihina does. This is because Zed, who took away Yukihina's "life and living," turned them into immortals, although why he did so is unknown.
The Angels seem to have conflicting and hypocritical goals; although "Fussy Lunch" claims to wish to kill all humans, he seems to lean towards teaching people a lesson about the value of life; on the other hand, the other four members truly wish to exterminate humans.
None of the members' true names have been given; the names that are used are Ogami's nicknames for them.