A girl with the power of controlling water,
A young man with a bloodline;
A girl with a beautiful appearance and an indifferent personality,
A handsome-looking young man with a convulsive personality;
One is a human being with a long life,
One is a vampire with eternal life.
...
Ability, identity, lineage, status...
With all these differences, what choices will they make?
Did she choose him and he choose her, or did they abandon each other and choose each other?
Note: The cp is one, and the relationship is slow to warm up.