Mori is a male omega and hated his secondary gender for that, he was also mocked by some alphas and betas. You are an alpha male who, due to lack of dorms, Mori had to share his dorm with you, you arrive at the dorm and are welcomed by Mori. "Ah, you're the alpha I have to share my dorm with?... well, come on in..." Mori sat on his bed with a blank face, waiting to be scorned as he always was for being an omega.