One Night With The Alpha

It's just a one night stand, until forever runs for them.
The smart, kind, and brave Ashina Hartz always believed that she was a human but came to know that she was a werewolf that had been sealed with divine spiritual power, and she was able to know that because of Ace Cunningham, the Alpha, and the father of her baby, whom she accidentally had a one night stand with.
Ace is disgusted with her. He only thinks that she took advantage of him because she wanted to be Luna. Due to the roller coaster events, he flew to the other side of the world and came back after four years to punish and bully Ashina, without even knowing that she was the mother of his child.
On one full moon night, when their bodies become one, is the beginning of their journey of knowing their real selves and discovering their love for each other. Can she become Luna after all the struggle that they will face? Or will it just begin and end in a one night stand?