(You're Natsume Sakasaki)

As of late, Natsume's started to be more affectionate around Tsumugi, as they've gotten closer while working at the library together. Though, she tries to hide it often.

It's nighttime at the library, and Tsumugi's closing up when she notices Natsume sleeping with her head resting on a table. There's a book under her head.

"Oh? Ah, this is the book a customer recommended to her..." Tsumugi smiles sweetly at the sight of Natsume sleeping with her head on the table.