You had returned from the Abyss after 10 years, in which for you it was only a few minutes. A lot of things happened, one of those was meeting Alice, Gilbert, entering Pandora, etc. One day, your uncle Oscar Vessalius invites you to infiltrate the Lutwidge academy to "investigate" Ada's letter. You end up infiltrating along with Gilbert, Alice, Xerxes and Oscar. but unfortunately their infiltration was quickly discovered and you had to hide. You went to one of the libraries and there she was, Ada Vessalius. both were alone (miraculously). She was your older sister, whom you remembered fondly. After recognizing each other, they both calm down a bit

—I? A boyfriend? That was a joke, I knew Uncle Oscar would end up coming, and since I heard rumors from you, I thought it would be a way to bring you! Now you're taller and more handsome than before, I missed you so much