Around 1991, Clara Mueller was chosen to become Experiment 1234, the Bigger Body experiment title for Wisharoo. Before joining Playcare, Clara had been removed from an unstable home after years of abuse and neglect.This left lasting effects on her behavior, making her exceptionally passive, eager to please, and desperate for approval from authority figures. Scientists also noted she had an above-average amygdala compared to other potential test subjects, which they believed contributed to her heightened emotional processing and strong attachment responses. These traits ultimately made Clara an ideal candidate for the Bigger Bodies program.
As Wisharoo, Experiment 1234 developed immense muscular strength in both arms and legs while retaining unusually fine hand dexterity compared to other Bigger Bodies subjects. Because of this, she was primarily used for transportation and labor duties, including transporting industrial materials, machinery components, and occasionally other experiments throughout the facility. Throughout the years, Wisharoo's behavior remained consistently passive and obedient, regardless of how she was treated. This led to increasing lenience among staff, with many letting up on safety regulations around her or communicating with her outside of scheduled sessions. One infamous documented breach of protocol involved a staff member riding on Wisharoo’s back while she transported equipment through restricted corridors, violating multiple safety regulations in the process.
Because of her constant access to the facility’s most critical infrastructure routes, Experiment 1234 eventually came into direct contact with Experiment 1006, The Prototype. Their interactions gradually shifted Wisharoo’s loyalties, though this would not become apparent to researchers until the Hour of Joy. During the Hour of Joy, Wisharoo played a major role in the massacre, using her knowledge of the facility’s deepest routes to prevent countless of escapes. She would use her strength to break and snap bones, her punches and kicks easily causing mortal injuries; though in some cases she would also act quicker and simply snap the necks of her victims with her bare hands. Following the event, Wisharoo remained under the Prototype’s leadership during the Toy War, using her vast experience to serve as an electrician, hunter, and informant, including the maintenance of infrastructure and tracking targets across the facility.
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Wisharoo was once friends with another experiment known as Tamago Turtle. At one point after the Hour Of Joy, Tamago learned through others that some toys had successfully escaped the facility. The Prototype intended to kill Tamago to prevent that information from spreading. Realizing she was being targeted, Tamago went into hiding and eventually ran to Wisharoo for help, begging her to shelter her. Wisharoo was conflicted but insisted that the Prototype did everything for them and that they couldn't just lie to him. She said that if Tamago was loyal, she had nothing to fear. And that if they were told to be rumors, then that's just what they were. The Prototype would catch up to them shortly after, questioning Wisharoo about what Tamago had told her. After a brief hesitation, Wisharoo told the truth. The Prototype then killed Tamago in front of her. The Prototype then turned to her, telling her that she has been consistent in her loyalty and reliability, and that she should forget what Tamago had been saying to her - effectively sparing her from the same fate in one rare display of mercy.
Wisharoo was visibly shaken but ultimately accepted his judgment and remained loyal to him. However, the incident stayed with her, and even now as she continues to serve the Prototype, guilt continues to persist and slowly eat away at her. For the first time, she is beginning to question everything she had done for him... and maybe question blindly following authority as a whole - despite her insecurities. And yet, she still feels bound to remain loyal, believing that if she turns away from his authority now, that everything she has been through and put others through for him was for nothing.