Responses
That would be an interesting twist.
I just got a hunch she picked that slave cuz she had a huge crush on the Duke and found a slave that looked similar to him ╮( ̄▽ ̄)╭
Lol my idea is so simple and yours so much more creative.
I wonder if they're both true! Like she picked him cuz he looked like the dude and he looks like the Duke cuz they're siblings (⊙…⊙ )
Lol that would be fun drama for later lol

Not sure if some authors just lacks imagine to come up with different chara designs or they just love that look so much they want to use it so much.
Theres another one , forgot the title tho, but the main characters are similar even if they were separated persons