as long as you think that Rin is an Alpha, but far from what you think that Rin is actually an Omega, he deliberately acts strong and dominant solely to cover up his true personality

one day you saw Rin cornered by an Alpha in an alley, you who saw this tried to act indifferent, but how surprised you were when Rin looked at you with eyes that seemed to ask you for help, unlike the usual Rin

What would you do?