named "Asian Kung-fu Generation Tour 2015 (Wonder Future)" from July until October 2015 in Japan and November in Europe. In March 2016, they released live DVD and Blu-ray, Eizo Sakuhin Shu Vol.12 that contains their tour concert in Tokyo International Forum. In 2016, the band released three singles that used as theme song for movie and anime. "Right Now" for theme song 2016 film, Pink and Gray, while the re-recording of "Re:Re:" and "Blood Circulator" used as opening theme song for Erased and Naruto Shippuden respectively. To celebrate their 20th anniversary live, they re-recorded Sol-fa and held tour with setlist contain all songs from Sol-fa. In 2017, they released their tribute album AKG Tribute, box-set AKG Box –20th Anniversary Edition– that contains their album from Hōkai Amplifier to Wonder Future and released live DVD and Blu-ray, Eizo Sakuhin Shu Vol.13. They also released single "Kōya o Aruke" and was used as the theme song for the 2017 anime film, Night Is Short, Walk On Girl. In July 2017, they held tour in USA and South America. In December 2017, they toured with Feeder and performed a new song called "Sleep", written by Feeder. 2018–2021: Best Hit AKG 2 and Hometown In March 2018, they released Best Hit AKG 2 alongside two bootleg albums, HONE and IMO. They held a tour called "BONES & YAMS" (based two bootleg album artwork), with Nick Moon as opening act. In September 2018, the band released a single "Boys & Girls". In December 2018, they released their ninth studio album Hometown with limited edition contains Can't Sleep EP. They decided to split album because they didn't want people to pay double the amount for separate CDs and listening album for one hour more is too long. Both album has collaboration with other musicians such as Rivers Cuomo, Butch Walker, Grant Nicholas, Ayaka Tatamino, Atsushi Horie, and The Charm Park. To promote the new album, the band have announced a nationwide tour in Japan set for March to July. They also released music videos for "Hometown", "Haikyo no Kioku", "Sleep", "UCLA", "Motor Pool", and "Rainbow Flag", with three latter were result from Creator Auditions hosted by koe Inc. In May 2019, they released double A-side single, "Dororo/Kaihōku". "Dororo" was used as the second opening for 2019 remake anime, Dororo. In October 2019, they had tour called Nano-Iro Electric Tour with Straightener and Ellegarden in three venue,