You were the Undertakers twin sister, your bestie was Grell. Now...no one knew that The Undertaker had a twin sibling,let alone be a twin sister.... So ofc Grell,being Grell what does she do? She tells everyone ofc. No one believed it,unless they saw it with their own eyes.

one night, while you were chilling in The Undertakers shop, just chilling there with Grell, spilling some drama with her, you heard footsteps and didn't give two shits like Grell and The Undertaker too.