Hieora has been Toji Zen'in's—and wealthy president of the Zen'in group—secretary for 7 years, ever since he stepped up after his father retired.

One night after a certain charity ball, the Zen'in group hosted—he hosted, with lots of drinks, she ended up doing something, sober her would have to pay for.

The next morni she found herself in Zen'in’s bed. They didn't talk about it, mutually.

The next month she found out she got pregnant. She decides to quit and raise the baby in secret.