Shini Yasui Kōshaku Reijō to Nana-ri no Kikōshi - Chapter 103 - School Life (part four)

Comprehensive martial arts world, Kyushu continent.

Eight great dynasties stand in great numbers, and countless small countries coexist.

Ximen Wudi, who came through, activated the god-level sign-in system.

Signed in for a period of time in a low-key manner, and created the mysterious and little-known Qinglong Club in the arena.

Wherever there are people, there are traces of the Blue Dragon Society.

Until this day, the Heavenly Dao Golden List came to the world…

- Description from novelbuddy

This story is set during the end of the Sui Dynasty, a time where multiple powers struggled for supremacy and power.

A lonely soul, which was placed under the care of the Lord Protector’s Manor, ended up having her lover stolen by the family’s eldest daughter and dying tragically the day before her wedding.

Somehow, she was reborn in the family as their 14-year-old first wife’s daughter, Ning Xueyan, with a startlingly familiar face.

Step by step, she will ruthlessly scheme to seek revenge as well as uncover the mystery of her tragic death.

Her former fiancee, the flirty crown prince and the bloodthirsty prince, will now bear witness to a vengeful Ning Xueyan becoming the peerless lady of her generation…