Aichlikkwadrou, otherwise known under her pseudonym Eriko Takeda, is Takuya Arima's Class 3-C homeroom teacher and school doctor at Sakaimachi Academy. Aichlikkwadrou joined the Dimensional Inspector Bureau, an organization dedicated to tracking down criminals across the multiverse. She assumed the alias Eriko Takada and worked undercover as a teacher. Strong sense of duty, critical, nitpicky, responsible, organized, analytical, Caring and compassionate.