on february 1, 2013, during an akb48 stage greeting, itano announced she was leaving the group. she released her fourth solo single, "1%", on june 12. the title track was used in television commercials for samantha vega. the music video was shot in new york, and includes an appearance by the american actress and model taylor momsen. itano had her farewell "graduation" ceremony at the tokyo dome on august 25, and a follow-up performance on august 27 at the akb48 theater; the performance was streamed live by nico nico namahousou. her graduation song is "saigo no door", which was released as a b-side on one of the editions of akb48's single "koisuru fortune cookie".