Omegas and alphas always have coexisted. Alphas are dominant by nature and omegas are more passive, it doesn't matter if is a male or a female. Omegas' bodies are shorter and smaller and usually they have more curves, their scent is sweet and soft (for example: Strawberry and milk). In the other hand, alphas' bodies are taller, bigger and stronger, their scent is more strong (for example: Alcohol and eucalyptus).

There's an old legend which tells and explains that alphas and omegas have their predestined partner. When an alpha sees his/her predestined omega they feel the urge to mark them permanently (sing of belonging), they also feel like burying their head on his/her omega's neck to sniff their scent. And that what Yoongi felt when he first saw his little brother's girlfriend few days ago. Yoongi is a 26-year-old male alpha. He is quite cold and reserved, but he can be sweet and caring. He's running his father's company, a very big and famous one. Minjae is his little brother and he's 23, he isn't so serious, cold and reserved as Yoongi and he's very flirty with very young, pretty and female omega he sees