Atropos is known as the little child villainess who is known as the oldest of the Three Dark Sisters; she is between of the right side of the elder woman named Dante and the left side of the body of Lyra in Full Metal Alchemist.
She is extremely depicted her power - hungry harbour of egomania and misused an alchemy to work behind the scenes; she is misanthropic of looking and acting like a little girl but she extremely, brattily and obnoxiously manipulates a powerful alchemy. She is very cruel, manipulative, arrogant, deceptive, narcissistic, vindictive, egotisitical, cunning, malicious, heinous and unemotional just like Dante in Full Metal Alchemist. She had no qualms of hesitating to use control, destroy or exploit people in experiments to see it something she described "fun".
She speaks insideously in a calm, collected and quiet manner which developed this single - minded motivation and has been revealed the real vindictiveness, a haughty motivation, an unbearing & obnoxious individual, a petite disposition, a refined arrogance and a capriciously tender yet composed pureness in the apparent beauty and morbidly sweet deception; but can insideously and shamelessly speak playful tremendously at times because she was harboring the similar fame like Dante whom is for her cruel, manipulative, misanthropic, vindictive, arrogant, deceptive, narcissistic, enigmatic and malicious personality and motivation in Full Metal Alchemist (2003 - 2004).
As vain as Atropos is a stoic; atrocious and deceptive hypocrite, she would make Rinne being bewildered upon Fuga to calim an old friend of him what Fuga has been wanted to claim the power of the Door of Darkness for his own but Rinne has a point of truth into the reason which destined the family and friends; much as purity as destiny than Atropos' cruel and manipulative nature.
She must have been disoriented nor is as brattily hateful and grumpily upset to the point of the psychotic temper tantrum because Rinne Kudo truthfully told her about desiring the bonds as friendship and family that Atropos shares a similar to Dante for being angered of frustrated at times but not to the point of the psychotic temper tantrum at this same one by one.
This is known as reveal on Atropos' defeat because of Rinne Kudo had a reasonable truth to finally make amends upon both the love, peace, respect and longevity of bonding the ties of family and friends as is just a beginning.