As Mashiro tries to come to grips with Benio's popularity at school, Kobeni continues to try and remember about Hakuya. Later, Mashiro gets spooked at the thought of aliens existing. Meanwhile at school, Mashiro accidentally lets slip to the class that Hakuya is living with Kobeni.

As Kobeni worries about Hakuya and Mashiro, the only clue she has being a text saying they had gone back to the mountains, Mayura encourages her to go to the mountains herself to learn the true story. Taking refuge from the snow, Kobeni is eventually found by Hakuya and Mashiro, who had only returned home to harvest some edible plants that only grow on their mountain. Kobeni comes down with another fever as a snowstorm picks up, with Hakuya heading off to look for help whilst Mashiro uses an opportunity to look for firewood. Delirious from her fever and worried about people leaving her, Kobeni heads off on her own in search for them, with Hakuya managing to save her from falling off a cliff. After Hakuya agrees to be more open with Kobeni, everyone returns home to their everyday lives.