Sign-In Hostage: From Pawn to Mastermind

A history graduate student unexpectedly transmigrates into a hostage abandoned by his homeland. At the brink of life and death, he binds the Myriad Worlds Sign-In System. From then on, he signs in within the enemy state to quietly build up power, sows chaos and manipulates events in the struggle for the throne, and rises all the way from an abandoned pawn to a mastermind playing the world as his chessboard. — Description from novelcodex.orgFull novel: Sign-In Hostage: From Pawn to Mastermind — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠