I Parted Countlessly From My Beloved Over a Millennium, Now I Shall Become the Wicked Lady - Ch. 6

[MangaDex]

 

[zerio]

Hmm, so, it's either Louis and William are gay, and thus they are happy to get a marionette to hide their relationship.

Or Louis is some kind of reincarnator who knew Amelia from before.

Or maybe something else unexpected.