A Thriller of Secrets, Power and Revenge When Arin sees her mother convicted of a crime she knows she did not commit, her childhood comes to an abrupt end. Years later, alone and driven by a quiet thirst for justice, she becomes a brilliant hacker and creates an artificial intelligence capable of challenging the digital fortress of the powerful company Titanthra A. M., the corporate empire where it all began. Determined to follow the trail of the fifty billion baht embezzlement and expose the truth behind her family’s downfall, Arin walks a dangerous line between legality and revenge. Everything changes when she meets Sasi. What begins as a casual relationship quickly turns into an intense and unexpected love. But Sasi holds a deep connection to the world Arin has sworn to destroy: she is the daughter of Titanthra A. M.’s CEO and is unknowingly entangled in the secrets that bind the past of both families. As violent crimes come to light, old secrets resurface, and power games intensify, Arin and Sasi find themselves caught in a whirlwind of revelations, losses, and impossible choices. Between ruthless mothers, painful truths, and a past that refuses to let go, both must decide how far they are willing to go for truth and love. Firewall is an intense emotional thriller about revenge, power, and redemption, where nothing is as it seems and where some truths can be just as destructive as the lies that concealed them.