Justice day

Justice day is the time of Saving/destroying year that all the students of the year sign the comic book of legends, they are then tied to their hero or bad guy destiny and when the time comes, bad guys minds are erased of the heroes real names and only the heroes remember what happened.

The comic book of legends
The comic book of legends has been going back for ages and keeps the plots of all the times heroes and bad guys do stuff, for instance, if anne signs, in her record, it will have info on her dads doings and what she'll have to do to gotham until bess wayne, the next bat(wo)man comes along and stops her. It is kept in nick furys office, head of the school, and he keeps it for each justice day.