When Chu Yi Ping, an emotionless man, dislocates his hand in an accident at school, his uncle gives him Ever 9 as a caretaker, an experimental intelligent robot that his company is secretly testing. Although Yi Ping is reluctant at the beginning, he finds that Ever 9 complements his deficiencies and makes him feel the companionship. However, a sudden malfunction forces Ever 9 to undergo a factory reset. After the repairs, the newly restored Ever 9 starts acting stubborn and adopts an uninterested attitude towards Chu Yiping…