Alpha x Beta Beta x Omega
beta x omega: http://www.mangago.zone/read-manga/kurui_naku_no_wa_boku_no_ban_beta/ http://www.mangago.zone/read-manga/romantic_joutou/alpha x beta: http://www.mangago.zone/read-manga/altruist/
I already read but anyway thanks a lot (⌒▽⌒)
i gotchu http://www.mangago.zone/read-manga/kashikomarimashita_destiny/
Alpha x Beta
Beta x Omega