Rinkoku kara Kita Yome ga Kawaisugite Doushiyou - Vol. 1 Ch. 3

[sounami231]

So if the dragon-mark or whatever is in her "chest valley" and the the other Noble guy who fumbled called the mark disgusting to look at, this implies he infact looked at her chest valley, which means there might be a chance she is A second hand bride

Probably, like that side character didn’t like her appareance to begin with and it is said that side character and princess relation ship never grew after that. Why would he touch her.