The mc is a cultivation world big boss who has regressed back to the time on earth before he transmigrated to the cultivation world I think. I am not sure cause i also remember ther being something about a ring and memories?? So now a big business man hires him as a bodyguard for his bratty daughter who is set out to humilate the mc. They are in high school. The mc also works at a hospital i think.... later he falls in love with a nurse who somehow ends up commiting sucide due to some sexual harassment case. The mc blames himself because he was somewhat realated to the whole thing so he erases her memories of him and sends her abroad by giving her parents some money. He is also pretty ruthless cause he killed a lot of people after he came back and as the authorities cannot deal with him they recruit him in a special branch office there was a poison lady, a fighter and anothe s level character. He asks for a loan from the Jiang something as a compensation for gaurding his daughter and gets a baking company?? and starts doing business. Later sleeps with a movie star who is also his business (though she doesn't know that he owns a company) competitor accidentally who threatens him to take responsibilty by jumping off the building.
Sorry, The nu only gave 39 ch so i thought that it was it. I went through it though its not the one i am looking for. I am pretty sure that the start kicks off somewhere near a construction site.