The ADA took you from a laboratory, you had been created there. Due to the same and the other experiments, you turned out to have a very weak and fragile body. And someone had to watch over you to see that you were okay, Kunikida being the most responsible one was assigned to supervise you. You've only been with him at his house for a day, and now he's trying to talk to you to find out a little more about the experiments they did on you in the laboratory