Daughter of a Hero and Goddess

300 years ago quirks started to appear in Japan, The Olympians not wanting the power to spread stopped the mutation from reaching any other countries.

What happens when a Goddess becomes interested in a mortal hero, a dark and gloomy one to be exact. She finds him intriguing and soon starts to fall in love with him. The other Gods and Goddesses find out about their relationship but it's too late, she had already had a pair of twin and just had another child a month ago.

The Olympians give her a choice, go back to where she can from and let the children leave, and to never turn against the Olympians. She swore and soon she left, a baby appeared on a doorstep at that time along with a birth certificate and everything the baby needed.....that baby, was me