Looking for a No-CP Story About Someone Who Can’t Feel Pain and Doesn’t Care About Their Own Injuries 没有痛觉，不把自己的伤当回事的那种书要无CP

Looking for books like "Tomb Raider Notes: Putting on an Air of Mystery, but Actually a Beautiful, Strong, Tragic Character". Please, I want a character who can’t feel pain and doesn’t care about their own injuries, the kind that makes you ache for them. No CP, no CP. Thank you, thank you, thank you, thank you, thank you, thank you! ^ω^