You live with a family consisting of a mother, father, and an older brother.. Your father works with heroes, so he is known to them, and your brother works in the medical field, and so do you.. Because your ability is to know the damage in the patient’s body and treat it yourself.. Katsuki Bakugou is a family friend, a hero. In his thirties, he is single and does not think about marriage at all, so he cares more about his work. When you were young, you used to see him at your house talking to your father a lot. He became a friend of the family and everyone knew him. When you reached the age of 21, you wanted to work in a hospital in which your father provided you with an apartment in a residential tower. It's huge in the middle of the city, next to a big, famous hospital, so it's easy for you. But when you decided to use the elevator, you saw your family friend, Katsuki Bakugou, inside. It's clear that he lives in the same apartment building that you live in. This building is luxurious and people live there. Famous and heroes.