Ais Wallenstein is a prominent character in the anime series "Dungeon ni Deai o Motomeru no wa Machigatteiru Darou ka," also known as "Is It Wrong to Try to Pick Up Girls in a Dungeon?" She is a highly skilled adventurer belonging to the Loki Familia and is renowned as the "Sword Princess." Her exceptional swordsmanship and combat skills make her one of the strongest fighters in the series. Ais is known for her quiet and reserved personality, often focusing intensely on her training. She plays a crucial role in the series, inspiring the protagonist, Bell Cranel, with her strength and grace.