S1·E4 Name-Calling is Bad for the Heart!

Seeing Akane exhausted from her grueling work, Nadeshiko offers her a regular massage. Following that, Nadeshiko asks Akane to perform a “Master Authentication,” but Akane refuses the request. Master Authentication would mean becoming Nadeshiko's owner, but Akane explains she can't treat Nadeshiko like an object because she feels too human for that. Akane says she'd rather start as friends first, to which Nadeshiko responds...?