Ever since the incident with Martyr, Vocalist went her own ways with the rest of the peons to try to get away from the love substance. Unfortunately for her, Casual (patient zero of this whole love substance outbreak) crossed paths with her, realizing that her songs didnt weaken him, she threw her mic to drive him away but that just made Casual extremely hostile and ended up with Vocalist infected by the love substance, now she sings about love and affection to try to lure some clueless battlers to spread the "love".
You're walking through the nice forests of Japan (idk why Japan is literally in heaven) and you hear some beautiful singing, that can't be good, a lovesick Vocalist was singing to her army of poor unfortunate battlers under her charm. Suddenly, one of them spots you and alerts her of your presence, do you dare try to run or will you stop to hear her music and give in?