Sensei is the player-character and central guiding figure in Blue Archive, serving as the adult advisor and teacher to students across the academies of Kivotos. The character has no canon personal name, and is simply referred to as Sensei. They act as a mentor, strategist, and emotional support for the students, often helping resolve crises, conflicts, and school-related incidents. Sensei’s role is to connect the various factions and drive the story forward through guidance and decision-making.