2,000 years ago, amidst the war between humans and Earth Empire Bug Naraku on Chikyu, Nephila met and fell in love with one of the six heroes of mankind. They fled the war and settled in a snowy mountain area, where they gave birth to their son Jeramie. She was also the original owner of Venomix Shooter. Although she killed Deathblow Shogun Daigorg in attempt to prevent civil war, she then got brutally ambushed by her own race and succumbed to her wound. Before dying in front Jeramie, Nephila gave her son the Venomix Shooter. Return After 2,000 Years During the battle between King-Ohgers and Glodi, Nephila appeared and kicked Glodi away and struck each of the King-Ohgers bar Jeramie whom she hugged which left Jeramie shocked and confused. Nephila told him that she needed his help. Tvicon TV STORY-Ep. 30: Frozen Scales She returned as a giant on Dagded's order but was beat by King-Ohger. She later helps in the final battle against Dagded, joining Jeramie and the Bug Naraku family fight Kamejim and a puppet Glodi. Nephila is shown to be a caring mother, as shown with her loving relationship with Jeramie. Even after being revived by Glodi, Nephila still cares about her son and refuses to attack him. As a warrior, Nephila is both powerful and dignified to her own accord, as shown when 2000 years ago, she's single-handedly defeat Daigorg which the other King Ohgers had struggled to do so, even 2000 years later. Her ambition is to unite the Bug Naraku as a whole which was, ironically, fulfilled when the Sanagims had then united with each other in order to defeat and, subsequently, killed her.

It is later revealed that Jeramie is an illegitimate child birthed from the forbidden love of the sixth King-Ohger and the Bug Naraku princess Nephila, which caused the sixth King-Ohger's story to be removed from the legend to keep the image of the King-Ohgers as righteous heroes while Jeramie and his parents were excommunicated. The sixth hero's powers were sealed in the form of a mask which kept Jeramie's appearance concealed, turning him into the world's notorious trickster known as the Spider Mask. losing his father as a child, he witnessed the citizens of Bug Naraku brutally wound his mother, after she sealed away One-Hit Shogun Daigorg. Before Nephila succumbed to her wound, she gave Jeramie her Venomix Shooter. During the Wrath of God incident fifteen years ago, Jeramie hibernated for a year where he became an exhibit as a non-decaying corpse.