This song was uploaded onto Niconico and YouTube on February 17, 2015. It has entered the Hall of Fame. "Akaito" is the sequel to Sarishinohara and Yonjuunana, being the third song in the series. The song's title refers to an East Asian belief called the "red string of fate." The legend says that two people connected by the red thread are destined lovers, regardless of place, time, or circumstances. This magical thread may stretch or tangle, but never tear.