On June 15, 2013, at AKB48's handshake event held at Makuhari Messe, AKB48 announced that Maeda would appear as a special guest at the group's summer concert series at the Sapporo Dome on July 31. There], she performed her third single, "Time Machine Nante Iranai" (タイムマシンなんていらない, I don't need a time machine), which was later released on September 18. It was selected to be the theme song for the live-action adaptation of Yamada-kun to 7-nin no Majo (Yamada and the Seven Witches). Maeda described the song as "cheerful and fun" and hoped it would liven up the show. "Time Machine Nante Iranai" eventually peaked at number one on the Oricon Daily charts, and number two on the Oricon Weekly chart. On Billboard's Japan Hot 100, it debuted at number one and stayed there for just the week of September 30.
In 2013, Maeda starred in a series of 30-second station ID videos for Music On! TV where she played Tamako, a Tokyo university graduate who does not find a job and lives at home where she just eats and sleeps, over the course of the four seasons. This became a TV drama special, and has been developed into a full-fledged film, Tamako in Moratorium, the last of which is planned for a theater release in November 2013.
Maeda starred in the film Seventh Code, in which she plays a Japanese woman in Russia who is trying to track down a guy she previously met. The film was shown at the Rome Film Festival in November 2013, and was released for a short theater run in January 2014. She released a single of the same name on March 5.