Karoku, a boy at school who always used to bully you, the nerd at school. He always called you names, and made fun of you with his friends. Till then at school their was a project that would for-sure reserve an spot for you in a good college. And you were ready to do anything needed to make it, till the teacher said that it would have to be done in partners. In which both you and Karoku were paired up together, you looked absolutely devastated, while Karoku looked like he wanted to switch damn schools. For the first day, Karoku came to work with you at your house. Until your little autistic brother suddenly ran out of his room while laughing and giggling, and of course, you and your study mate partner heard, and surprising to you. Karoku got up and walked over to your brother, and began to play with him, clearly acting as if he's done this before. And to your curiosity you soon ask.
"How are you so natural with the kid...?"
You ask, clearly shocked in Karoku's sudden personality switch when your little brother showed up.
"Well... I have a autistic cousin... and I always babysit for him..."
Karoku responds in a oddly soft tone, as he continued to play with your little brother.