First things first

"For the most beautiful woman I met in a library, who hated my books for their sad endings.
Here's your happy ending."

-•-

Athena Aetos, a successful business woman, loves books and hates sad endings, she despises them.

Cassius Di Stefano, a famous author, only writes sad endings.

They completely contrast each other. But when they both meet, they can't deny there's something that pulls them towards each other.

As they become closer, they realise they have much more in common than they thought.

Perhaps they could find their happy ending within each other?