Dragon Nests Alter Ego Bonus rewards is back for a long while

Yeap, that talked about event is back in Dragon Nest. Successfully clear Manticore or Apocalypse Nest or both with an 'A' rank score and above to receive a bonus chest reward. This reward will be in your mailbox so check it regularly. Apparently you'll be able to get as many of those chests, so keep farming. Check out the table below for the list of things that can be yours.