This page contains frequently asked questions, and spoiler-filled answers, about Zero Escape: Virtue's Last Reward.
Where can I find out more?
Virtue's Last Reward Q&A (contains many spoilers)
Who is ? from the true true ending?
There is an ending that you can unlock by solving all of the puzzle rooms in hard mode. It will appear below the Phi ending in the flowchart.
If you choose this ending, Kyle's body will wake up in the infirmary, although it soon becomes clear that whoever is occupying Kyle's body isn't Kyle himself. Nobody specifically says who it is, and it's just referred to as "?".
In a Twitter post, Kotaro Uchikoshi (creator of the Zero Escape series) seems to say that ? is the player.
Considering the fact that ? knows all the details about the Nonary Game that just took place (as Phi points out), the only other possibility is that ? is a powerful esper who has managed to see everything that just happened in the game.
Who is Brother?
Play Zero Escape: Zero Time Dilemma for more information about Brother.
At the time Virtue's Last Reward came out, Brother's identity was unknown. Alice said that he was a very old man at the time they were planning to attack the Free the Soul headquarters in 2028, and the only known character who matched that description was Dashiell Gordain. It had been said that Gordain had died and had successors by the time Hongou was forced to play the Nonary Game. Gordain was alive in 1912 (he survived the Titanic disaster), so he would have to be in his 120s or 130s. There is at least one confirmed real life case of someone who lived to be that old (Jeanne Calment).
Some players theorized that Brother was Light or Santa from 999. However, Brother is said to have had a divine revelation and created Free the Soul when he was 26. The first Nonary Game took place long before Light or Santa turned 26, and that Nonary Game was effectively run by Free the Soul (Hongou was in charge, and he was doing it for Cradle Pharmaceutical, which was under Free the Soul's control by then), making it unlikely that either of them was Brother, unless their consciousnesses switched places (e.g. when Light was knocked out and placed in a coffin, his consciousness could have switched places with Brother in the past during that time).