At the "ReLIFE Jikken Houkoku-kai (ReLIFE Experiment Progress Report)" special event on Sunday, it was announced that the TV anime will receive a Kanketsu-hen (final arc). With a total of four episodes, the Kanketsu-hen will be included in Blu-ray and DVD, which will be released in March 2018. Youji Ikuta, vocalist of the opening theme band PENGUIN RESEARCH and seiyuu, appeared in the event as a "secret guest" and announced that he will join the cast.
ReLIFE is a web manga series by Sou Yayoi that began its serialization via comico in October 2013. The series currently has seven physical compiled volumes in print, with the latest published in February 2017. The 13-episode anime adaptation, available on the comico app prior to the TV broadcast, aired in Summer 2016. A live-action movie also just premiered recently on April 15, 2017.