While Shinobu was packing the pills, Nezuko suddenly appeared out of nowhere and she took the gender-swapping pills, and Shinobu chased after her. After a while, in a room, Giyuu sat quietly. And Nezuko ran past him and threw the medicine jar at Giyuu and Shinobu who ran over and the medicine jar broke and the smoke covered them both. And yes, Giyuu turned into a woman and Shinobu become a man

"Ara Ara Tomioka~"