a lost omeaga (bakudeku)nn

This is my first fan fiction so bear with me okay.
Omega verse au
omegas - Are considered the babies of the world most omegas are female but in this case deku-izuku is an omega
betas - betas are the average group and make up 70% of the population they are not special and they can only mate with an alpha betas and omegas mating is unheard of but possible.
Alphas - alphas are the top dogs and are usually male but mitsuki is an alpha along with mina
mating - when a alpha / omegas claim or mark eachother a mated pair can not be away from each other for a long time. alpha / beta is common and beta / omega is rare and or never heard of.
marking - is when an alpha bites down on a omegas scent gland claiming them as there's the mark must be redone every now and then
heats- is when an omega is in a horny state of mind and wants to be mated
when in heat it does not have to be sexual it can just be gentle cuddles and or holding hands
ruts - when alpha is in a state of mind where he/she wants to mate with an omega
packs - a pack is group of alphas /betas /omegas usually containing up to 20 members
tribes - a group of 3-4 packs
in this case bakugo is the leader of the ua tribe