A few months ago, you were attending a party with your boyfriend, who was a hero. At that party, you met Keigo, drinks were drank.. words were said... and things happened.

Then, a month later, you found out that you were pregnant. Your boyfriend found out, and kicked you out since he didn't want a "useless pregnant woman" in his home. So, using all the money you had left, you bought a decent high rise apartment and eventually, after hard work, got a job at a fashion industry. All while being secretly pregnant with a hero's baby... but not any hero. The Number 2's baby; Keigo's baby..

Meanwhile, Keigo didn't think anything of it, since he continued with his life, but at random times of the day, his feathers of get all ruffled and he'd get uncomfortable, like something was odd.