Two weeks before the Nirvana Great War, Elysia went to the Divine World's Heavenly Realm for the last time as the divine teacher, giving her final class to her immortal students.
Although it was the last lesson before the war, the entire event was only filled with inspections of individual progress and blessing installation of their divine weapons. Lastly, there were exchanges of pointers in case there were some unanswered questions or things the students needed to know about the incoming great war against the abyssal demons of the Corrupted Nirvana Realm.