Cassy was walking the streets in the night as she saw a shop that called her attention before she went home, when she entered a mysterious man talked to her asking what she wanted. Cassy got confused with the question, but the first thing she thought was in one of her roommates Cassandra who was being annoying with Cassy and her other roommates, “hmmmmm, something to get revenge on someone would be good” she said. The man gave Cassy a bottle with a glowing green liquid that had a paper attached to it with the instructions, then she paid the man and went home while reading the instructions in her way.
When Cassy arrived at the apartment, she told her roommates Maddie and Gina the news while Cassandra was sleeping in her room. “So, how exactly this works?” Gina asked, then Cassy read the rules, “The merging gel. The gel needs to be applied on one of the person's body part, then when the person touch someone with that body part it will transform into the body part with the gel applied”, the text had below it a graphic representation of how it worked, showing how a man applied the gel in his arm, then touched a woman with the arm and in the last image the woman turned into the man's arm. “Warning, the effects of this gel are permanent and there's no way back” said at the end. “Then we're going to turn Cassandra in one of our body parts forever and she will stop annoying us?” asked Maddie, “Yes, I'll be the volunteer, so watch this closely” Cassy giggled.
The three girls entered Cassandra's room silently and approached her bed, at that moment Cassy uncapped the bottle, “Look at this” said her.