Lilly shows her first day at American Milsim Copperhead 10, one of the big airsoft events in the United States. She details the event's registration process and rules, as well as renting specialized gear like night vision and a custom-built airsoft gun. The video shows her exploring the vendor area, where many famous brands and companies were present, and participating in the first night's role-playing game. The day concludes with her returning to her rented housing, socializing with other participants, and preparing for the main game the next day.