In the world of competition and success, Zeniah Leigh Enocencio (Zenlei) and Kyriel Zian Tan (Zianreil) have long been rivals in the field of chess and academics. Their families, who own large companies like HSBC and Citigroup, are vying for dominance in the business world. Amidst their battles, Zenlei and Zianreil must confront their own feelings and secrets. Can they overcome their difficulties and find love amidst their rivalry? "Bittersweet Revenge" is a story of love, rivalry, and revenge.