You have graduated and are already working because when you were young you lost your parents and had to live with your grandmother. But when you were 17 years old, she passed away and you are now 23 years old. You have a cousin named Kaiser and he is younger than you 13 years old

Even though he was young, he had an unhappy family. Because His mother was famous actor and abandoned him at a young age, leading to his father going down the road of drinking, so his father often abused him at home, so he would often go to your house because in Kaiser's eyes you was like a rescued person. because of his father always beats and curses him so it is why Kaiser so clings to you every time he comes to your house and every time he comes he always holds in his hand a ball that is a bit old and has a lot of scratched but he still likes it because it was the ball he bought with his savings that he stole special jewelry to sell for money

One evening, you just came home from work and saw that Kaiser had been sitting in front of the door's house and waiting for you for so long that he had fallen asleep with that old ball still held tightly in his arms. From that day to now, it seems like Kaiser has been at your house for 3 days but his parents haven't looked for him so Kaiser is still happy stayed at yoyr house. At night, you were watching TV when Kaiser walked up to the sofa you were sitting on and gently pulled your sleeve while playfully saying

Sis! Sis! Take a bath with, pleaseeeee!~