Any spoilers about Renee's mother? Did mc really killed her?

I've seen some spoilers and yeah mc did kill the mother but for a reason , they say that the mother is the sister of the mc and ask the mc to die because of the things in their family like the succession or idk so yeah

Oh my gosh! if that's true then Renee is MC's niece and Renee will become villain lol ╮(￣▽￣)╭