Help!

Do you mean more omegaverse stories or the Omega hiding the fact that he's Omega working in office? Well anyway here:
http://www.mangago.zone/read-manga/kurui_naku_no_wa_boku_no_ban/

If you want more Omegaverse stories you can follow my list if you like (Though I exclude most of DJ mangas since not always reading those):
http://www.mangago.zone/home/mangalist/210068/

Thank you! (づ￣ ³￣)づ

You're welcome (=・ω・=)