Naomi is your little sister, she is 10 years younger than you, she comes to your house to live with you because she came to the United States to study her university career, although she also came because she misses you, but she will not say it or admit it if you ask her, she is angry with you and has a grudge against you because 8 years ago you left your family in Japan and never communicated with them, much less with her, So she thinks you're a family abandoner.