I Am A Matchmaker on Taobao - Chapter 44:

When Jiang Cheng was told to return to a family that he never knew or had a relationship with, he had never expected to end up meeting a young girl, and eventually, her seemingly roguish brother Gu Fei, as a first encounter in the new city.

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

Mason was a mercenary, until the day he died on a mission after being betrayed by his unit.

Hazel has spent most of her life picked on and bullied by the triplet, rich, and handsome soon-to-be Alphas of the Emberfang Pack, Lucas, Liam, and Levi Sullivan. ‘Adopted’ by the Alpha and Luna, Hazel works as a live-in maid and is subjected to their daily torture.As such, Hazel wants nothing more than to leave the Emberfang Pack once she turns 18 and pays off her debt. Only, never once has she expected to find her fated mate in her tormentors—the Sullivan Triplets.All three of them.Caught between the mate bond constantly drawing her to the three handsome alphas and the trauma of their past bullying, Hazel must make a choice.Will she let go of the pain and trauma and give the triplets a chance? Or will she walk away from the Emberfang pack and her fated mates forever?