He might have a really dangerous bloodline ability + rank 8 or he's somehow rank 9 (Kalego is rank 8).So, is Dali rank 9? Or a high 7?
Sullivan is an example of a demon strong enough to rank up but hasn't. Maybe if they could use stuff like the rank owl more often, it would be more accurate.Wonder how the ranking works. Its seemingly something like a hierarchy thing and I had the initial impression that it doesnt affect strength. But it somehow affects familiars and Iruma's ring. Also, its granted by winning school challenges. What if your not into standing out? Are you just stuck in the same rank even though you're really strong?