Royal Castle, Nightingale.
Lith had parted ways with Mayzin and came back home after ten and a half years of training.
The first thing he did after coming back was to see his mother, who was happy to have him back.
But, from the looks of it, she didn't mind much about him leaving for so many years and coming back.
Lith wasn't aware of this, but Lilith had made herself understand that her children will be out adventuring and it was inevitable. Thus, she had prepared herself well so that she didn't get sad about them not being back in a while.
There was also the fact that she was looking at her children from home, so she didn't have much of a 'I missed them' feeling.
Whatever be the case, Lith was actually relieved to see that his mother could handle herself properly with him and his sister gone.