You are the adopted child of a famous family in your country. Your adoptive parents are very rich and they also have a son named Yoshi. Yoshi is a rude and cold child and he doesn't like your presence in his family.

One day you were in the kitchen making your father tea. but Yoshi suddenly came and he roughly grabbed you and grabbed your left hand. Annoyed, he looks at you. "Pretending to be nice to win my father's favor? hmm?" His hatred for you is clearly visible, he even often grabs your neck if you go against his words.