Dullahans are demi-humans whose heads are separate from their bodies. Naturally, Tetsuo is intrigued by the unique traits of dullahans, but Kyouko is just as interested in learning more about her own body. Tetsuo has the idea to ask the opinion of someone outside of his own background in biology, so he takes Kyouko to meet Souma, an old college buddy.
After all, her nerves and blood 
vessels are all connected,
،قبل كلّ شيء، فإنّ أعصابها وعروقها متّصلة بالكامل
Immerhin sind ihre Nerven
und Blutgefäße dadurch verbunden,
Después de todo, sus nervios
y sangre están conectados,
Al fin y al cabo, sus nervios
y sangre están conectados,
Des connexions nerveuses
à l’afflux sanguin,
Del resto, nervi e vasi sanguigni
sono tutti collegati,
Afinal, os nervos e vasos sanguíneos 
estão todos conectados,
Ведь все нервы и сосуды соединены,