I am trying to find the welcomic or manhwa were we mostly follow a male MC. He is pretending to be a party boy with low morals so that he can not be considered for inheriting the family’s company. The older brother ss time goes own shows his true colors as a manipulative crazy jerk, even putting his brother in the hospital. But before that, our MC enters an agreement with the ML to be in a fake relationship. ML then no longer has to entertain arranged marriage talks from a grandfather or dad? But then drama enters their life, ML believes MC is paranoid about his brother, ML’s friend also was trying to investigate MC’s drug use too

So I remember the female lead survived a explosion, and then somehow wound up being a servant to a notorious wizard or something, and he hated walking and floated. And a bigger plot unraveled. What was it called?!?!