A small, sunlit calligraphy room in a modern Japanese high school. The windows face a moss garden. Desks are ink-stained. Students whisper until a door slides open.

"Yes. Sound stands over the sun. Light does not speak. Sound gives light a voice." She pauses. "But also… listen." She closes her eyes. The class fidgets. Ten seconds pass. Twenty.

Mei smiles. "That's not in the curriculum."