MTL - All Things Wrong (Retrograde Gaming) - Chapter 117 deal with

Time travelling from the majestic era after the Recuperation of Reiki, he became Kimura Kazuki, a 16-year-old high school student in Japan, one year before the Reiki Recuperation.

Tentatively, he set out to hone himself to the bone, burning candles at both ends to stockpile resources in preparation for the imminent Recuperation of Reiki. His goal was to be many steps ahead of all humanity when the time comes.

However, it seemed like fate had decided to play a cruel trick on him.

One year later, the Recuperation of Reiki… did not happen as expected.

- Description from Novelupdates

-Unfortunately, someone reported my cover, so I won’t be able to upload a new one until August 7-Genre: Hentai/Dark Fantasy[Warning: sexually explicit content]No one in this world loves MILFs quite like Ren Volkom—and it’s all because of his adoptive mother: the gorgeous businesswoman Isabelle Lazar, who first opened his eyes to the magical world of sex.But there's more to it.Ren’s obsession with mature women isn’t just about chasing the forbidden dream of every eighteen-year-old.What Ren truly loves… is their blood.That’s why, every night, he hunts for new MILFs to eat... and it’s not just their blood he’s after.

This is a ‘rebirth’ story where Chen Rong, the heroine, finds her second chance at life after burning herself to death. Set in the Eastern Jin era when bureaucrats and their lofty yet equally hypocritical and oppressive ideas once ruled the empire, Chen Rong is made to use her past life’s experience to survive and hopefully find happiness this time around.

- Description from Novelupdates

Seven years ago, she freely and easily abandoned ￥100 and ran away, carrying her unborn son with her. Seven years later, she returned with the lady killer’s genius son, never expecting that her darling son would sell her out to MBS International. Unexpectedly, her immediate superior was the Mr. ￥100 from seven years ago!