MTL - The Best Male Supporting Character In the Pet Text is Reborn - Chapter 8

Dying in a tragic accident Marcus Ferrous gets transferred to a fantasy world of monsters and magic, except when he arrives contrary to what he expected he is now level one and a ghost. Left with nothing on a strange new world, Marcus will struggle with everything he has on his journey to get stronger and uncover the secrets of his new world.

Nidel, who belonged to the Technological Magic Order that held low prestige, became the bodyguard of a foreign prince behind the scenes. Left with no choice, he assumed the role of a bodyguard, turning into a black cat using the transformation magic he prided himself in, but the one who assumed the role as official bodyguard was the Royal Knight Legato. Nidel, who one-sidedly held feelings of affection towards Legato, thought of this circumstance to be interesting, butー

The young lady from the Xue family was talented and beautiful, and married the dream husband at the age of 16. They had a loving and harmonious relationship and were together for 3 years when her husband attained the title of Imperial Scholar.

Gu Changge, a noble lady from a wealthy family, is a well-known business legend in Yuncheng, going into business at 15, taking over as President of Gu Group at 18 and becoming Chairman of the family business at 30.
She is murdered by her husband Shao Tianze, just to give his mistress Gu Changle a healthy heart. But a premeditated car accident makes Gu Changge revive in a new guise and settle into an 18-year-old girl, Song Yunxuan.
The new face, young body and experienced soul become her weapons of revenge. In her struggle with the four big families in Yuncheng, can Gu Changge shrink back? Will she open her broken heart again? Can she always head off dangers in power struggles?
Let’s find out if Gu Changge can revenge herself and create glory again.

- Description from Novelupdates