In the world of dxd in the underworld inside the gremmory territory a scream could be heard of a woman. That woman is none other then Venelena gremmory who has just given birth to her two children. The first child was given the name Alex gremmory and 2nd child's name was Rias gremmory. Both of them were born with beautiful blood Red hair and bluish green eyes.
Venelena: She ordered the maid to call for their father Zeoticus gremmory the lord of the Gremmory household.
Zeoticus:My love how are you feeling. Are the children alright. They look beautiful as you.
Venelena: Yes honey I am fine. The children are so beautiful. The boys name will be Alex gremmory and the girls name will be Rias gremmory.
Zeoticus: Those very good names my love. Alex seems to have large amount of energy reserve's comparable to a high class devil. Rias also has decent amount of energy reserve's.
Venelena:Yes honey. Alex will be the heir of the Gremmory household.
Zeoticus: Yes you are right.
Suddenly the door bursts open and comes a Man with long Red hair and a handsome face. Which is similar to both Zeoticus and Venelena as he is their son sirzechs Lucifer one of the four king of the underworld.
Sirzechs: Hello mom dad how are my siblings. Are they alright. They look so cute.