既2020年11月发行了单曲《Sapphire》之后，The fin.决定在即将于2021年中发行的新专辑之前先发行第2首单曲《Deepest Ocean》（两首都收录在新专辑中）。新曲是由Yuto Uchino创作、演奏并制作。由洛杉矶的格莱美奖获奖音乐工程师Mike Bozzi来进行母带的后期调音，The fin.优雅的音乐达到了新的质量水平。 After "Sapphire" in November, The fin. starts 2021 by dropping the 2nd single ahead of their upcoming album, set for release in 2021. Yuto Uchino composed, played and self-produced "Deepest Ocean", adding a refined funky hook to the creative blend of dream-pop and psychedelic synth-pop that is The fin.’s soundscape. Mastered by Mike Bozzi, Grammy award winning engineer from LA, The fin.'s elegant soundscape has reached a new level of quality. Comment from Yuto Uchino (The fin.) : " I wrote Deepest Ocean in 2018 when I kept moving since we were having so many shows all over the world at the moment. It was entertaining, but I was feeling unsettled at the same time. I found that I was searching for an ideal world that exists only in my mind when I wrote it. It’s about escapism. But it has the strong energy to fight with reality and my self at the moment."