Ω Girai no α to Konyaku Shimashita

"Why do I have to get married?!" Tatsuki, an omega who dreams of taking over as the grand master of his family's ikebana school, has been sent away by his father to marry due to his secondary sex. And even worse... his younger fiance, Soh, is an omega-hating alpha. While neither of them plans on becoming the other's mate, Tatsuki has nowhere else to go and Soh, head monk of the temple, wants to be married on paper only. Thus, their life living together begins. However, Soh's heart is slowly won over by Tatsuki's determination to not give up on his dreams, no matter the obstacle. And while other omegas' pheromones have never affected Soh, Tatsuki's scent has become irresistibly strong?! An omegaverse marriage between a younger alpha monk and a strong-willed omega ikebana artist!! (Source: MangaPlaza) Note: Includes one extra chapter.