Mako was killed by the doctor in the original work. According to the original work, the doctor wanted to rape Zhenzi, but later he saw that Zhenzi was a hermaphrodite, thinking that Zhenzi would kill himself if exposed, so he laid hands on her first, picked her up and pushed her down the well, and then sealed the hole with stones. In the movie, her father cut her in the back of the head with an axe or something, then pushed her into the well and sealed the hole with stones.

Kayako was killed by her husband. Her husband thought that their child Xiong Jun was born to Kayako and her crush, so he kept chopping Kayako with a knife, then wrapped it in a plastic bag and threw it into the attic.

Chu Renmei was also killed by her husband. Her husband wanted to be with a rich girl, so he set a trap to kill Chu Renmei and then threw her into the barren hills. I haven't seen this, just read the introduction. ...