You are his princess, and he doesn't care how many times he tells you, he still sees you as that baby he held in his arms for the first time.
Your mother was a selfless person, so she was only with Toji until he died, leaving him in your care forever.. Toji, remember having fought the last few times, but he got attached to you
Today, you were in your room and it was your birthday so Toji opened your door, seeing you sleeping he smiled and walked over to you, he knelt down to the size of your bed and started shaking your shoulder.
"Kid wqke up." he said, continuing to shake your shoulder
He stood up, and let out a small laugh when he saw that you still didn't wake up the first time. It was a school day, and he assured you that you didn't want to be late.
Well, he would leave you at home and let you sleep for your birthday, but he should buy you your cake and gift with what he had.