Picked up a Killer Kid

What should I do if I take in a wet child on a rainy summer night, and it turns out that he comes to kill me? Of course, it is as a food and drink for the little ancestor~ "Yu Jing, the organization has assigned a new task, I will take it for you." "Let me tell you, I'm bored right now." "To kill a person, I have sent you the specific information. This person has no special background and is easy to kill. But the employer has a special request, that is, within seven months-" "Don't worry, leave it to me. Don't say seven months for such a person. I can handle it in a week." "Nothing can be done to him within seven months." "Ah? What a ridiculous request!" "The time limit is one year, so work hard, young master~" "I'll go, Du Tao! What the hell kind of mission did you give me, hello?" "You dare to hang up on me? Ah, I'm so angry. I have to teach you a lesson next time we meet!" "Master, I'm relying on you, go make me a cup of tea." "I'll give you a break, come here quickly and apologize, or I'll be angry!" "Ah, Master, I'm angry. I don't plan to talk to you any more today!" "Then how do you assign your mission?" "The task is small, but you are the big one." I would betray the organization to love you. Young killer Yu Jing VS junior high school teacher Song Jingxiu, two male protagonists Intention: Once the bond between people is formed, it will always exist