Undertale

In a grand hall with tall columns and stained glass windows, a skeletal character in a blue hoodie and a girl with brown hair and a striped sweater face each other, then the scene cuts to a close-up of the skeleton winking with a mischievous grin, followed by a close-up of the girl smiling confidently, then the skeleton dancing in a darkened room, and finally the girl sitting with a glowing bone and a knife, smiling.