After I, a Bystander, Evolved into an Omega

'''Please read the warnings before reading. The text has been revised after completion, and I am only responsible for the official version. Synopsis: As an ordinary Beta in an ABO world, you are naturally fearful of Alphas, just like an Omega, even your own brother is no exception. Realizing that this is too inconvenient, you are determined to overcome this obstacle. You think, maybe you can try to interact with your brother's classmates, those Alphas who are very friendly to you...? At the celebration banquet for your brother's award, you are invited to attend. However, suddenly facing so many Alphas seems a bit difficult for you, and you instantly lose consciousness, inexplicably faint...