Sen is a very kind and calm individual who cares about her teammates. She describes herself as a cautious individual, supported by not facing her opponents until they are incapacitated. She is also very intelligent and skilled, and can use illusions to trap her opponents. She can also be merciful and gentle. She can be teasing and playful, having a good sense of humor. Despite being mischievous, in her heart she is kind and doesn't like to hurt others, though she will if she has to.