Forgotten Manga finding help

Hi :)

I’m looking for this manga that I can’t remember the title of or most of the plot I think it’s a martial arts manga, or something related to fighting. There is a girl in it whose supposed to be incredibly beautiful however when she meets the MC she’s blind (and I think all of her senses are gone) as the story continues she regains her senses as she only didn’t have them because her sect (assassin’s) I think removed them for training. The MC escorts her from matches (or they meet up at a set place after his matches) to where she’s staying. I think one time the MC gets injured during a match and she almost kills the person who did it in the middle of the night?

If anyone can help me find this I’ll be eternally thankful!!!