If you wish to know...
May contain spoilers
According to a comment from some chapters ago... actually Luka is the future version of the duke. The duke is (kind of?) trapped in the past and Luka is his older more mature version.
If that's real than dauyyym fr!!!!! Now that's interesting... I wonder what he thinks of her now that she is suddenly changing
not really a future version. but a new personality that emerged as a way to cope his sadness over his family's death. kind of like how people with DID forms a new personality because they can't handle the trauma.
Idk of it's just me but Luka is acting exactly like her dad... Like the three of them without the duke look more of a family than the duke the mom and the daughter. Sorry but somethings up with him and I need to know