When Xi Chen woke up this morning the first thing he thought of doing is to apologize to his sister and grandfather, no matter what she has to do it now and he knows that apologizing on the phone won't do.
There is already a prepared set of new clothes on his room and so he didn't need to go back to Xi Mansion for it. He also sent a message to his brother-in-law if he could borrow a car from their garage since there are few of it, and he only said he could take any car except the black one at the back.
He didn't particularly care why and so he just took whichever is fine and drove to Xi Corporation.
As for how he managed to get here, he's also in the dark and looking at his sister in front of him his guilt once again crept up inside him.
You're already 22 Xi Chen! You should face your sister as manly as how you would in front of other people, he scolded himself internally.