Tom Riddle, who died after the war, came to the game world. His pure black soul was put into a body full of gentle genes, and he stayed for five years in an environment of "everything except your son" and "Avada chewing cantaloupe".
Five years later he went back, and the diary in the Chamber of Secrets was about to direct the basilisk to attack Harry Potter.
Tom: When will the Nameless Book also come to the rescue?
Upgraded and fun fighting monsters, no game system.
Cp: SSTR no difference, DMHP, GGAD and other official matching
Concept: Genes determine who you may be, but choice determines who you are.