Arknights: I Met the Legendary Mercenary

At that time, I thought I would die as a mercenary until I met her. Lemuan: Brother, can you tell me your past? Li Ke: No. Lemuan: But I really want to know. Li Ke: I'll tell you next time. I will definitely tell you next time. Lemuan: Will my brother always be by my side in the future? Li Ke: Yes, as long as you call out your brother's name, he will definitely come to you. Lemuan: Does that brother like me? Li Ke: Of course I like it. How could I not like it? Who doesn't like their cute sister? Lemuan: I'm talking about the kind of... Um... Like. Li Ke:? Theresia, Lemuel, Lemuan, whoever can avoid being wronged will not. The protagonist is not invincible and is slightly sickly.