Bab 1514: "Atherton's Mysterious Ability" 

The rumors among the small races said that the seven big races could be the current so-called big races because of their ancestors' privileges, giving them guidance from afar and so on. 

Even the human ancestors were also like this. 

Their number wasn't as big as other races with good innate strength, but the human ancestors have also managed to go past the world's threshold. 

Someone said that the reason why many unique  ability users appeared in the human race was that the human ancestors gave them a secret technique or items. 

This made the humans' bloodline itself make it possible for so many humans to awaken good abilities and even become a multi-ability user. 

The celestial ancestors felt that the reason why the blood clan wasn't included as one of the seven big races in this era was probably that their ancestors chose to commit suicide instead of leaving.