Uh au of my heart is basically Seungmin got kicked out of his parents house not cuz he was gay but cuz Seungmin’s mom lwk dead and his dad is like old and he remarried when Seungmin was in six grade and his stepmom lwk didn’t like him so he got kicked out when he was in eighth grade and Chan and him known each since like they were kids and Chan offered him to come live with him so uh ya :P