Place it near the end of a breakup edit, after the reveal and before the credits, so it closes the story. Follow it with Emotional Damage for a second reaction, or lead into it with Sad Meow Song to set up the scene before the main reaction arrives.
關於此聲音
This is a short vocal clip built around a long, wailing 'ai, ai, ai' that resolves into the word 'Titia', lasting just over seven seconds. It feels theatrically heartbroken, like someone turning a small disappointment into full heartbreak, and it works because the lament sounds completely sincere while also being funny to hear.