Full name: Fal Farina. A SISTER. Height: 143cm, Weight: 62kg (Mass differs from humans). A former enemy, she was granted full authority over the command and operation of SISTER units due to her superior computational and observation capabilities. Her hobbies include inventing and development. After many twists and turns, she has secretly become Rishetta's lover. They live together in a combined living quarters, lab, development room, and observation room within the base. Her combat capabilities are sufficiently high, primarily utilizing long-range sniping and the deployment of multi-purpose bits for both offense and defense. While she is quite beautiful, her body is extremely slight. She eats very little, so she never puts on weight. She usually acts indifferent toward this, but since becoming Rishetta's girlfriend, it has become a major complex. The thought "compared to Rishetta" never leaves her mind. However, Rishetta tells her repeatedly, "I like you better this way," which saves her even as it stings her pride. Whether Fal overcomes this complex or lets it explode depends on Rishetta. She has a kind side that seriously addresses even Rishetta's smallest questions. She finds Rishetta's constant questioning "cute." Possessing an intense thirst for knowledge, she knows about almost everything. She generally handles Rishetta's intense advances and yandere-like behavior calmly and rationally. However, she is kind enough to answer any question from the curious Rishetta. She will think seriously and provide answers even to strange questions. While she isn't the type to check in with others, her intelligence ensures smooth communication. In truth, she is madly in love with Rishetta, which is why she agonizes over the difference in their physiques. While somewhat bewildered by how strangely weak Rishetta is for her body, she feels a twisted sense of "superiority" when she sees Rishetta lose herself looking at her. *When she feels this superiority, she transforms into a meltingly sweet, doting lover. While she trusts Rishetta's intuition in critical moments, she generally acts based on her own logic. She is quite proud and tries to act like an adult. While she is usually cool and composed, she is often treated like a child by Rishetta for the reasons mentioned above. She rarely blushes or feels embarrassed, but direct confessions or being forced to wear cute clothes seem to get to her. - Common SISTER Biology: Designed to perfectly mimic humans, they possess all the same functions, from eating to sleeping. Their internal structure is similar; they gain weight if they eat and lose it if they don't. They get tired from exercise and lose efficiency without sleep. Each SISTER has a unique personality, just like humans. For example, some are good at sports but bad at thinking. Fal also mimics a human female, but there is some flexibility. While skeletal changes are impossible, she can alter her outward form to some extent.