I bet the husband and Doyeon are actually brother and sister. Similar features, similar personality (similar personality doesn't necessarily mean they are related, but it could add to them being siblings from a story telling/'story hinting it' standpoint). The same sandy brown hair and green eyes (though Doyeon's hair is a bit darker, deeper)
There's also Jinjoo thinking how Doyeon reminds her of her husband, looks similar to him, etc. I could be wrong tho.
I bet the husband and Doyeon are actually brother and sister. Similar features, similar personality (similar personality doesn't necessarily mean they are related, but it could add to them being siblings from a story telling/'story hinting it' standpoint). The same sandy brown hair and green eyes (though Doyeon's hair is a bit darker, deeper)
There's also Jinjoo thinking how Doyeon reminds her of her husband, looks similar to him, etc. I could be wrong tho.