Responses
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Seme's father promised to him that he will let him stay with his brother but he has to marry a woman that will give birth to their heir. It's only for a tradition. But misunderstanding happens because he didn't tell his brother why he's marrying a woman in the first place... At least that's what I understood from reading this

I was so wrong about this manga. I dropped it before because I thought the groom still liked a woman but no.. I came back after reading the comments and I'm so glad I did. He literally only ever loved his brother. Their love for each other is exceptional and the art is so beautiful and unique and fits the story. It's now one of my favorite mangas.