Rengoku Kyojuro is the son of two Alphas, for generations only of that lineage, the stronger and superior of the other 2, Beta and Omega. His father always wanted an Alpha son to carry on the generation... but upon his birth, Kyojuro is revealed to be an Omega. his parents will keep the truth hidden and make their son believe that he is an Alpha, until, at the age of 20, the month of the heat of the Omegas begins. Rengoku knows nothing about heat and asks the Alpha Uzui Tengen,hisbff explanation