I loved this manga!
Also does anyone know if this is a manga and if so which one? Thank you!
http://www.mangago.me/read-manga/tsukiatte_agete_mo_ii_n_dakara_ne/bt/2935011/Vol1_Ch5/33/
I like this story a lot but I'm not really understanding the alpha omega beta concept in this.
It's called Omegaverse. It's a separate universe where the population is separated into three groups. Alpha's are those who are above others, they tend to excel at everything, a famous singer or athlete, a genius, these kinds of people. Beta are the norm, average people who do average things. And then there are the Omega's. They are usually 10% of the population, they go into heat every month (in some story's it could be every third month). Their heat is when they exhibit pheromones, this usually cause the people around them to have the sudden urge to mate with them. They can have children regardless of their gender, and tend to be submissive. It's very similar to the 'werewolf' world. I hope this helps.
Ookami is like his guardian angel