Demonic Dragon: Harem System - Chapter 487: Another incident?

Venshiro, a young ronin bound to the Black Vein Blade, is hunted by clans who would kill for the curse he carries. Every time he draws the sword, it takes something from him—his memories, his soul. But the blade remembers everything.And now, it wants more.

fter years of fighting a terrible disease, Amelia finds herself transported into a mysterious world, right into the quarters of a demon captain! Free from her years of suffering, Amelia decides to face this new reality with optimism and cheerfulness!Strangely, she seems to have a new body, retaining all the abilities of her game character she spent years levelling in the hospital! However, wasn't that character a demonic combat mage? Who's this pretty blond woman she's become!?Well, never mind! Better not let the demons know of her titanic combat capabilities, instead maybe her modest healing abilities could be provided as a service? Hang on, I'm not a spy, or an assassin!

Upon waking up, Ruan Xia had transmigrated into a webnovel that she had stayed up all night to finish reading. She had become the villain’s mother.

In the novel, after the death of her first husband, the original owner of the body had hooked up with a Mr. Perfect at the fastest possible speed. Worried and discontent that her son from her first marriage would become a burden on her, she heartlessly abandoned her son.

Having once held the best quality script and informed of future events, Ruan Xia looked at her still alive first husband as well as her future villain son. She sighed. She wanted to apply for a different script!

- Description from Novelupdates

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.