The romantic comedy light novel series follows the story of Tada Banri, an incoming freshman at a law school in Tokyo, who is starting college a year late due to an accident that resulted in his losing his personal memories from the first 18 years of his life. (To be clear, he still remembers stuff he learned in school, but doesn?t remember his friends and family at all.)
I do not mean any offense but when I saw this section, it just reminded me of the light novel series of Toaru Majutsu no Index where the protagonist had the same experience.