Isekai One Turn Kill Nee-san: Ane Douhan no Isekai Seikatsu Hajimemashita season 1 episode 9
Episode title: The Preferred Form of a Big Sister
Asahi and Maya go out on a gathering quest. Sophie joins them, but Asahi manages to pair Sophie and Maya so he can go off on his own. When he’s ambushed by goblins, an unexpected blast of dark fire reminds him of the first time he met Kilmaria.
