He Zhu, the legitimate daughter of a prestigious Jinling family, falls from the clouds into the depths of despair. After five years lying low in Langya, she returns with a frail body and a brilliant mind. She pours her heart into designing ingenious weapons to defend her family and country, but in doing so, threatens the interests of powerful families and narrowly escapes death time and again. Sustained by family, love, and friendship, she unravels the tangled mysteries, saves her country from catastrophe, and ultimately rises from the ashes to find true love.
