The squad are asked to watch over the emergency phone and wait for a call to check it is still in order, so Kanata decides to take responsibility whilst the others go out for various tasks. Before Rio leaves, she gives Kanata a trumpet book, signed by an Iliya Arkadia. Later, Seiya, Mishio and the Priest arrive, and decide to help Kanata practise using a phone, but a mess is made when Mishio spooks Shuko. Yumina arrives at that point, scolds the others and gives Kanata a change of clothes. Afterwards, Kanata needs the toilet but can’t leave her post, so she holds out until Rio comes back. The phone then rings and Rio answers, hearing a voice she’s not too fond of asking her to save Helvetia.

Kanata asks Kureha to tell her more about Princess Iliya. Yumina asks Kanata and Rio to check up on an old woman named Jacott who lives in the mountains. The two later take a walk where Rio talks to Kanata about her half-sister. As the snow falls, Yacott, filled with memories about her love, runs off into the snow and never returns. Rio reveals she is the half-sister of Iliya, and decides to leave the fortress to help improve relations between the warring sides, leaving Kanata her trumpet.