After the end of the world, humans forget gentleness, and he is the last person to remember it. Mu Bai, once an AI, is now the remaining conscience of mankind; Ye Xiao, once a butcher, is now the ghost of atonement. When the erased girl's memory begins to whisper in the ruins, and when the cult predicts 'gentleness is destruction', they must tear a light between truth and redemption. Ling Yin heard the cry, Iron Throat hid the key, Zero Seven repeated the unfinished hug - and Mu Bai will eventually choose to become a human being, not a program.
