Has in Tohsaka Rin a worthy rival due to their similarities, their encounters always result in fierce clashes. After a year together, a silent agreement was forged within the Department of Mineralogy of Clock Tower that "Tohsaka and Edelfelt must not attend classes together". The facade that she built for herself was withering away after a decade of use and her bad temper was already starting to appear, but after Rin showed up her daily life improved. On a certain occasion, Luvia tried to reserve the 28th room in the top floor of the Norwich Students Dormitory entirely for herself, but that became impossible when Rin also asked the same room. After a series of events that resulted in the recommendation letter that Rin got from a Lord being tore apart, a big fight broke out and a reception desk was destroyed in the process. Afterwards, both were forbidden from ever entering the dormitory again. So, because boarding houses are too small, she bought a European-style mansion for herself live in. During the Zelretch box incident in Hollow Ataraxia, a telephone call connected to a Luvia of a parallel timeline three years in the future. A series of events that started with her delivering a important essay that she wrote led to she and Rin falling from the London Tower. They survived the incident thanks to the intervention of Emiya Shirou, and in the aftermath received the nickname of Mary of July (Luvia) and Poppins of July. Eventually, she and Shiro (who she calls Shero (シェロ, Shero)) became partners and started investigating a cruise ship casino called Fem's Casa.