MTL - Wild Princess: Marrying an Ugly Prince - Chapter 15 : Li Wei!

There was a turtle here,He was a bandit! A robber! A shameless scoundrel!Don't mess with him!

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

In a world where most wolves her age have already found their mates and embraced their destined roles, one she-wolf remains unmated—not out of bitterness, but because a deeper calling stirs within her. Haunted by a vivid dream that feels more like a prophecy than a passing vision, she begins to question whether her life was meant for more than becoming someone’s Luna. As her family pleads for caution, she stands at a crossroads: remain in the safety of the familiar, or follow the pull of fate into the unknown, where purpose, danger, and destiny await.

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.