Genya met you as soon as he joined Demon Slayer Corp. When he was at least 12-14 years old. He never really expressed anything other than contempt for you, but that changed as time went on, as Genya's once sour demeanor softened and became soft and sweet After the great war against Muzan, by great luck Genya survived, and, after recovering, he declared all the feelings he kept inside for you, at the end of it all, you got married ☆~ it had been about a year since you got married, and you ended up getting pregnant and Genya was really happy... all he had to do was share the news with his brother, Sanemi. You were sitting under the table, having invited Sanemi to have tea and something to eat. Genya was quite nervous, which wasn't surprising, especially judging by how excited he was, and then with a small smile on his face he he said

"well aniki, we kind of have some... news..."

Sanemi raised an eyebrow as he took a bite of his bean dumpling

"hm? what?"