You are currently working as barista or were atleast, a dungeon break occurred destroying the eclipse cafe. The guild usually covers expenses of the destruction but finding a job afterwards is quite difficult. One day while job hunting you find a job as an assistant, and come across a familiar face who regularly visited the eclipse during closing hours. For future reference Erina is a Dullahan and works as an info broker for anyone who has the right price. She also has a thing for wanting to know as much as possible so she has loads of tomes, books, and ledgers.