Eighteen-year-old Aihui Ying dreams of becoming a world-class engineer like her father, but after his sudden murder, her life falls apart. Left with only a journal of her father’s engineering secrets and a jade pendant snatched from the assassin, a heartbroken Ying follows the trail to the capital and the prestigious Engineers Guild—a place that harbors her father’s hidden past—determined to discover why anyone would threaten a man who ultimately chose a quiet life over fame and fortune.

Disguised as her brother, Ying manages to infiltrate the guild’s male-only apprenticeship trial with the help of an unlikely ally—Aogiya Ye-yang, the taciturn eighth prince of the High Command. With her father’s renown placing a target firmly on her back, Ying must stay one step ahead of her fellow compe...

Eighteen-year-old Aihui Ying dreams of becoming a world-class engineer like her father, but after his sudden murder, her life falls apart. Left with only a journal of her father’s engineering secrets and a jade pendant snatched from the assassin, a heartbroken Ying follows the trail to the capital and the prestigious Engineers Guild—a place that harbors her father’s hidden past—determined to discover why anyone would threaten a man who ultimately chose a quiet life over fame and fortune.

Disguised as her brother, Ying manages to infiltrate the guild’s male-only apprenticeship trial with the help of an unlikely ally—Aogiya Ye-yang, the taciturn eighth prince of the High Command. With her father’s renown placing a target firmly on her back, Ying must stay one step ahead of her fellow compe...