Inspired by temporal change of harmonic overtone and light frequency, "Lunar Eclipse" is the first collaborative recording between Tamaru and Hatakeyama. Sourced from an electric bass (Tamaru) and an electric guitar (Chihei Hatakeyama) . this album recorded on February 2016 in Enban (Kouenji). These three songs are work that beautifully depicts the scene of the Earth's shadows hanging on the moon.