Oto Hildebrand was an idiot. Beautiful, stylish, and rich, but an idiot nonetheless. And he wanted fame. All he needed to do was trend.

Kiku Hayami was a killer. She was as graceful and aggressive as she was cold. And she wanted freedom from the mob. All she had to do was one last job.

But Hayami's boss didn't want her to succeed. So when a meet-cute on a train puts them together, she must keep Oto alive long enough to complete her mission. A task that he does not make easy.

Unfortunately, as Oto begins to trend thanks to the mysterious murderer, Hayami is pulled from the shadows, while her chances at freedom begin to disappear. And, no matter how much she wants to be invisible, her newfound idiot won't allow it.

As the two are thrown into each other's worlds, they must learn to adapt to new ways of life if they are to achieve what they both want.

Gunfights, fashion shoots and teaching moments. Follow as these two learn together about the struggles of their first love.