Kingdom Hearts 0.2 Birth By Sleep -A fragmentary passage - is one of three releases set to be made under the Kingdom Hearts HD 2.8 Final Chapter Prologue title. It is a unique game in the Kingdom Hearts series, and is set to feature Aqua as the main protagonist as she traverses through the Realm of Darkness. The game is set to act as an epilogue to Kingdom Hearts Birth by Sleep and as a bridge to the events Kingdom Hearts III.