Some events may involve different characters, so you may need to raise their relationships further.
how can i improve relationship with elvie im 0.9 but idk what next
Increase your relationship with Nel.
Is 6 still not enough?
It is enough. All that is left is to progress through the main story.
The event will happen after you visit to Dred Valley.
Can i take off violet? Since i already completed her events
Yes