AgentofSocialMediaChaos's Anime Girl of the Day Season 3 Episode 338 Dolly

Nope a clone. In the ToAru franchise the character Mikoto Misaka was cloned 20,000 times and all 20,000 clones have a hive mind as a result most of the clones have a single personality. However there are 3 who have developed their own personalities outside of the hive mind and those 3 are Dolly, Last Order, and Misaka Worst. Dolly was the 1st clone created as a result she has her own personality because she is connected to the hive mind but not fully part of it, Last Order is the main brain of the hive mind which means she is also connected to it but because she is the one in control she has her own personality as well, and finally Misaka Worst is a more violent clone created for battle and is where all the other clones negative feelings get channeled to which has resulted in her developing a personality as well