Lambda-11 is a calm and emotionless being, much like her predecessor Nu-13. However, unlike Nu, Lambda begins to show glimpses of human-like emotions and self-awareness over time. Initially driven solely by her programming as a weapon, she gradually develops a sense of individuality and loyalty, particularly toward her caretaker, Kokonoe. Though still reserved and quiet, Lambda's emerging personality reflects a growing desire to protect others rather than just follow orders. 