Put it as the final beat of a transformation edit, after Mangekyo Sharingan sets up the power reveal, then close with JoJo To Be Continued to freeze the scene as a cliffhanger before the next part begins.
關於此聲音
This is a short 4.65-second Japanese voice line in which a male voice calmly declares that he is a ghoul, steady and resigned rather than shouting. It feels dark, tense and quietly unsettling, like a secret identity finally being admitted out loud. The line comes from Tokyo Ghoul, where becoming a ghoul changes everything about the speaker's life.