The song is a remake version of their first major single “only my railgun,” the first OP theme for the first A Certain Scientific Railgun TV anime in 2009.
Since then, they have performed all theme songs for the A Certain Scientific Railgun anime and game franchise as listed below, and all music videos for the seven songs will be included in the Blu-ray.
The single has still been their second-highest-ranking one in Oricon’s weekly single charts, taking third place in its first week of release.
fripSide/only my railgun -version 2020-(Official MV/Short ver.)