Alpha

Alpha is the 1st type with 100% 'alpha' in their blood. Ofter perceived as strong and intelligent. The population is second rare, a tad bit larger than Omegas.

'Alpha' Growth
The Alphas are originally believed to be immune from the mutation because their blood is filled with 100% 'alpha' and there is no room for the 'alpha' to grow. Later, it is found out that Alphas aren't completely mutation free.

Currently, Major Lee Jinhyuk is the only Alpha who exceeds the 100% percentage without undergoing a complete mutation.