Angela is the main villainess from Evil Babysitter Drowns Kid in Pool!! Leaves Her for Dead!!!!, a short film released by Tomorrow's Teachings (release date July 29, 2022).
Angela's backstory revealed that she went to school with Mr. Wood (the father of main protagonist Emma Wood), but at some point, Mr. Wood broke up with her. She had held a grudge against her ex-boyfriend for years and had become obsessed with ruining his life, and in the film, Mr. Wood was going away on business, but left Emma in the care of a babysitter, named Karen. As the film showed, "Karen" was actually Angela, who answered Mr. Wood's call and then informed her friend, Rebecca, about her plan to ruin Mr. Wood's life, while looking at various photos of herself and her ex-boyfriend.
Angela arrived at the house and introduced herself as Karen, while charming Emma with plans to watch Netflix together and play games. Once Mr. Wood left, Angela showed her true evil demeanor and bullied Emma, who took out her phone and was about to call her father, only for Angela to take the phone from Emma. The madwoman unleashed a pair of scissors and cut some of Emma's hair, threatening to continue to do so every time Emma misbehaved. Later on, Emma caught Angela pasting a cutout of her face over pictures of Emma's mother, with the villainess catching Emma and berating her afterwards. Emma retrieved her phone and ran away from Angela before hiding in a crawlspace, where Angela found Emma and caught her.
Angela took the phone as it rang, and slapped Emma while deceiving Mr. Wood with stories of having girl talk with Emma, as well as claiming that Emma wanted a new mother. After the call ended, the evil Angela trapped Emma in the freezer, and didn't let her out until the following day. Emma threatened to tell her father everything, only for Angela to suddenly apologize for how she treated Emma, and later offered to teach Emma how to swim. At the pool, Emma stated that she figured out why Angela was being mean to her, adding that she knew Emma's father. At that moment, Angela shoved Emma into the pool and left her to drown, but as she was leaving the house, she was encountered by Mr. Wood, who returned home early.
When asked about Emma's whereabouts, Angela claimed that she was inside the house, only for a pool boy to appear with Emma, revealing that he had caught Angela attempting to drown her. At that moment, Mr. Wood looked at "Karen" and recognized her as Angela, his high school ex-girlfriend, and came to the correct conclusion that Angela committed all of her actions in an act of envious and vengeful rage. The villainess berated the pool boy for thwarting her plans, and afterwards, Angela was arrested (off-screen).