A Vocaloid song by Rohi (ろひ) which features Kagamine Rin in a gothic outfit that is worn in the artwork covers of Rohi's other songs.
It is about suicide which was lead to by loneliness and isolation and is part of the trilogy in which Rin sings about similar topics regarding one's dire psychological state. Kakuzetsu Thanatos is Rohi's most popular song.
