Reunion (ClariS song)

"Reunion" is the 18th single by the Japanese pop duo ClariS, released on September 18, 2019. The song served as the opening theme for the anime television series Eromanga Sensei OVA.

The single was released in three versions: a limited edition (CD+Blu-ray), a regular edition (CD only), and an anime edition (CD only). The limited edition included a Blu-ray disc containing the music video for "Reunion". The anime edition featured a special anime illustration jacket.

The song is characterized by its upbeat and energetic melody, typical of ClariS' style. The lyrics express themes of reconnection and rekindling of relationships, fitting with the overall narrative of the Eromanga Sensei series.

"Reunion" achieved moderate commercial success, charting on the Oricon Weekly Singles Chart. It remains a popular song among ClariS fans and anime enthusiasts. The single's coupling tracks typically include other original songs, often showcasing different musical styles or themes compared to the title track.