"LIAR DANCE" is an original song by DECO*27 sung from the point of view of someone who is in a toxic relationship. At first the person's lover is made out to be a liar, but it is later revealed that both the person and their significant other are lying to each other, as if it was the couple's "dance of lies". However, this person gets away with lying, while their lover has been caught lying many times. Eventually their relationship has turned into a big lie, with neither of them being honest to each other, and the person tells their lover to just "drink up the whole thing". By the end they are no longer lovers, and the person leaves their former partner, since their relationship has already died out anyway.