What a Perverted Man, My Sister Is Being Targeted

[Foster care + no blood relationship] [Yandere + reunion after a long absence + double cleansing + ambiguous love] [Paranoid and indifferent fake brother × Soft, cute and pampered sister] "I love you, Duoduo." "You are disgusting, Chen Jing." ....... When Chen Jing was six years old. Parents who had been away for half a year brought back a one-year-old child. His parents told him. This is a friend's child who is temporarily placed with us. And warned Chen Jing that she would be his sister from now on. Treat her as your own sister. Chen Jing didn't care, he didn't care whether she was the biological child of her parents. Because he likes this sister very much. Finally someone was with him. He thought Duoduo should also like him. Later, his parents left again, leaving him and his sister to live together. He was even happier. In this way, my sister is alone. I am no longer alone. As he grew older, he realized that something was wrong with his mind. But he quickly came to terms with it. He loves Chen Duo. Even if he tries all his means, he will not give up. [Not related by blood, not in the same household register] [The love line appears only after adulthood] [Foster care, foster care!