My Knight Rescuer is a Jerk! So Why should I ignore the Prince? MKRJ

Emily, a salary woman with a demanding job, falls asleep on the train home from work. When she wakes up, she finds herself lost in a forest, staring down three hungry orcs.

The handsome knight Kieran steps in to rescue her from certain death, and sweeps her off of her feet with his charm and personality, introducing her to the lonely looking but gentle prince Adrien and revealing her role as the 'Keybearer' - a prophesied maiden from another world who will find and gather together seven powerful 'keys' and save their world from destruction.

No matter how fantastic the world, however, some things never change. The so-called knight is really a scoundrel, who loses interest in her as soon as he gets what he wants, and immediately abandons her.

"But...if the knight is a jerk, then there's no reason I should have to ignore the sweet prince!"