Ending the Tyranny of the Three-Headed Dragon by himself, thus saving the Underworld from total destruction, what happened to our Hero, Sakamaki Izayoi? Making a promise he once made to a family, will he keep it? A Gathering of Young Devils is approaching, what will unfold in the party? Will 'he' attend the Gathering? Marrying Rias, will he still be able protect her last?

Hikari left everything behind for a chance to have a new life. Her family, friends, and possessions, they were all a thing of the past. Or so she thought. When introduced to our favorite No Name community, she comes face to face with someone she thought she'd never see again, Izayoi Sakamaki. What will happen as she is forced to face her path and mend the ties of a torn friendship?