To encourage customers to participate in Earth Hour, we create a new promotion called "Join the Dark Side". As part of the campaign, limited-edition candle pizza savers were released on a first-come-first-served basis at Pizza Hut stores across the city. Starting on March 26th at 6 PM, customers who made any takeaway purchases were given a kit containing the candle pizza saver. Fans were also encouraged to share their "dark side" moments on social media while enjoying a slice of pizza to further increase awareness of Earth Hour. This campaign aims to promote sustainable practices and encourage participation in Earth Hour among Pizza Hut's customers in Hong Kong.