Okay so Lets Start from my personal ranking
Orion: He is the main protagonist of the story. He is a foreigner from England and transefered to a new school and is under the care of his old babysitter/nanny "Nancy". Throughout the story he meets and rekindles hearts with many girls including Nova, Alex, Dalia etc; He is a well fit guy with a pretty huge dick, and medium sized brown hair and tends to wear formal clothing.
Nova: Our #1 Hacker! She's one of the characters Orion meets during his stay at Kredon (The main town the story is set in). She is an odd one having never used/had a phone before Orion meets her. She can be both an introvert and an extrovert at times. As said before she plays a big role in the story due her genius skills in her hacking technology. She plays videogames and even makes manga! She personally is my favorite girl in the series so far because of how fun she is and what she brings to the roster and I hope she gets more scenes in the future. She has long curly ginger hair and has an eyepatch covering her left eye. Her body is amazing as to how she has perky breast and an amazing ass. She normally wears casual clothing so nothing too crazy.
Annie: Our soft-hearted scaredy cat<3 This girl is one the main characters in the game so far due to her strong relationship with Orion. She came along to stay with Nancy along with Orion and has been doing perfectly fine in the house. She enjoys playing this games main point..Eternum. She enjoys it so much that she burst into joy whenever someone offers to play with her. She very shy and open hearted. She can also be afraid of things that are scary and has a sexy side that's waiting to be revealed. Throughout the story so far she and Orion try to figure what they really are to each other and go on all sorts pf adventures. Annie is a very petite girl with straight brown hair and often wears normal casual clothing.
Nancy: My favorite Mommy, Nancy is the "Caretaker' of the girls and Orion in the story. Dalia and Penelope are her daughters which are also prominent characters in the story. Nancy is a Hardworking women and cares for her family. She is a very heartwarming nympho that has a strong connection with Orion even right off the bat. Even going so far as to saying that Orion arriving back to Kredon "revived" the family and the house. She's pretty fit and looks way younger than her age. She has short red hair and has One of the best looking bodies in the game!(my opinion) Her ass is huge and her tits are aswell but they compliment each other and the rest of her body well. She wears clothing that compliment her curves and body but also formal at the same time. She also has one of if not the best scenes in the game as of update 0.05. One thing I loved while playing Eternum was that Nancy's scenes are always somewhere risky or public. Me personally I love that and I hope she gets more scenes in settings like those.
Okay I feel like I wrote a bit more then intended but this was from the heart and I hope this helped you out a bit more! If you want to know about the rest I'd be more then happy to let you know! I really love this game and the path its going on right now and cant wait for the next update! The creator really their all into it and it shows! Okay once again happy to help and lmk about anything else<3