I NEED HELP

i want to reread this manhua but i cant remembered it's title. here's the thing that i remember

it's yaoi and if im not mistake it's chinese manhua. the scene i remembered is the uke's voice sounds like an old man cause he drink a poison and the seme found him in his hut, however the seme couldn't recognise uke cause he's blind and the uke's different voice

the uke was given task to kill the seme when he still little