Seo Family

 Seo Family 

Current Members - Johnny Seo VII, Youngho Seo VI, Donghyuck Seo, Iseul Seo (Decreased), Boreum Seo (Donghyuck's mom) and Donghyuck's dad (Unnamed)

Both Iseul and Boreum married into the Seo family

-Seo family has been in Slytherin house for the past five hundred years - Ch-1

Is a very old family

Family crest - snake winding around a giant oak