Magical Girl in Hot Springs Inn - S0.E12

Illya and company go to a hot springs in, where Rin and Luvia are carrying out a secret mission. During the trip, Kuro feels more fatigued than usual from using the hot springs, so Illya and Miyu make up for it by doing other fun activities with her. Later that night, the girls investigate a magic point, which soon turns out to be a hidden hot spring.