Rebirth of the Majestic Wife - Ch. 9 - The Bright and Young Generation

[MangaDex]

 

[SnappleTi]

this family tree is a little confusing? so the second brother married his relative (assuming cousin or smth)? or did the dad marry his daughter in law’s relative after having kids??

 

[sinkingship]

Edward Pei is married to Aria Bai and his mother is... Cassandra Bai?

Do those two names have different characters in Chinese or something? Is it just a coincidence that his wife and mother have the same last name?