MTL - Back to My Dad’s High School Days - Chapter 15 Does it smell good?

Reiji Saeki, who lives in the north eastern countryside town, lost his life in an accident during summer vacation. ……But before he knew it, a mysterious ball of light hovered in front of his eyes in a world of whiteness. That ball of light was a magician from a parallel world, and is looking for a person qualified to inherit the magic they had created to prevent it from being lost. Reiji, who rode on that suggestion, now lives in the parallel world Elgin, with a new body and powerful magical power.

Follow Chen Ming as he accepts disciples, establishes a sect, and fights his way in a world that deems him a cannon fodder.
He goes against any common sense using his wits and novel knowhow to finish missions and arm himself against his cruel fate.

- Description from Novelupdates

Ming Luo is a wasted daughter of the Duke Yi’s household. Her father forced her to study medicine but it was not a wise choice since she was of no use. Her sister from a different mother uses underhanded schemes to get rid of her. Out of guilt and frustration, she tries to commit suicide. Everyone thought she was going to die but she miraculously woke up.

She and the blind date met man get married soon. She did not expect that the "ordinary" new husband turned out to be the CEO of the company she worked for.