The Girl I Found by the Road Turned Out to Be a Rich Heiress

[No rebirth + no System + one heroine + first-person POV + a groveling ex] When Liu Ruyan was blind, I brought her home. She liked biting my ear and calling herself my good dog. She also liked measuring my body again and again in the dark, saying she wanted to memorize what I looked like by touch. That night, as I talked softly to her in bed, she said she was having a cerebral orgasm. Innocent as I was, I asked what a cerebral orgasm was. She instinctively felt my heartbeat, trying to prove I was lying, but accidentally touched the wrong place. Seeing her flushed cheeks and rigid body, I tried to give her artificial respiration... Later, her sight returned, and it turned out she was the missing eldest daughter of the Liu family. She already had a White Moonlight. Before she could see my face, I left behind a death certificate and disappeared without a trace. I hid for five years, and only dared to show up again when I heard she was getting married.