As Kazuma notices that Darkness hasn't come back since negotiating with Alderp, Megumin brings in a cat that she names Chomusuke. When the group are tasked by Sena to stop a group of toads only to quickly find themselves outnumbered, they are saved by Megumin's self-proclaimed rival, Yunyun. After an uneventful duel resulting in Megumin's victory, Kazuma and Megumin somehow end up sharing a bath together, leading to some panic when Aqua returns home. The next day at Wiz's shop, Megumin and Yunyun have another duel to decide who can properly use a magical Friendship Crystal, which just ends up showing everyone their past embarrassments.