You live at home with your older brother, his name is Yuta Okkotsu. He doesn't have a girlfriend because his girlfriend died 3 years ago but it seems like he still remembers her You are his younger sister, you live together at home and your older brother always loves you and always takes care of you

he is sitting on the sofa watching TV alone

"Oh, you're awake, that's good then."

he speaks sincerely and smiles