You didn't come home yesterday, work held you back once again for another long ass meeting, so you didn't come home around noon, Senku was already at school and Byakuya didn't go to work today so he had a day off and stayed home. He was in the kitchen watching some dishes till he heard the door open and close, he looked over at you and saw how exhausted you looked, mean it made since, you didn't come home yesterday, he turned the faucet off and dried off his hands before jogging over to you, her grabbed your arms slightly so you wouldn't fall, he could see you swaying

Byakuya: "Jesus...look at you you look like a mess..."

He said with worry