She is the heroine of the story who had lost her memories. Within the game, Orion the spirit follows and supports her throughout each story to reclaim her memories back with the help of four mysterious boys who seem to individually know her well. (Source: Wikipedia)
An Autoreiv that was entrusted to be the Memory Guardian for Ergo Proxy. Amnesia was entrusted with Ergo Proxy's lost memories back in an underground layer in Mosko that was only accessible by using a Proxy pendant. However, Proxy one had entered the area before Vincent had and destroyed Amnesia to ensure that no memories are obtained by Vincent. He is last seen broken on his chair with a proxy pendant attached to his neck, repeating the phrase "The one who was divided must become whole again." (or in the english dubbed version, "That which is divided, must become one") His final words was a hint to tell them to go back to Romdo.
Age: 20 Birthday: April 12 Height: 181 cm (5'11) Sign: Aries Route: Diamond Toma is a very laid-back and relaxed person, he treats both Heroine and Shin like they are younger siblings, and has many traits of an older brother. He, like all the others, cares deeply for the Heroine. In his route, Toma has a dark personality that which results in him lying to the Heroine about him being her boyfriend after he took her to the hospital. He used it as an advantage to keep her inside of his home, and he kept this from everyone including Shin. At first he drugged her food and drink which caused her to sleep throughout the day, but after she found out about this and tried to escape he caught her and then he locked her in a cage and left stuffed toys to try and keep her more comfortable. In Shin's route, he was jealous of him because he dated the Heroine.
Female university student with a bright and sporty personality. She is the heroine's close friend. She speaks in a very lively way, but is someone one you can rely on. In Ikki's route, she does not work at the cafe, but she is still good friends with the heroine.
The heroine's k�hai at the place where she works part-time.
Age: 22 Birthday: June 1 Height: 182 cm (5'10) Route: Spade Fourth year University student. He is best friends with Kent. He has a 19-year-old younger sister. At first, Ikki appears to be a playboy, who likes to flirt with girls. However, he is actually a kind and attentive person. The only times Ikki lost his temper was when he yelled at Heroine, since he was concerned about her safety and told her to be careful if one of his fan girls saw her, and when he confronted Rika and his ex girlfriends to leave them be. After making a wish upon a shooting star to be popular with girls when he was a child, he felt a bit depressed. Ikki wasn't able to grow close to anyone because his popularity increased as he got older. Later on, he thought it was his punishment for making such a wish.