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the mom was having sex with her son so when the brother saw it he beats her until she passed out(almost killed her)
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what the heeeeeeeell
![](https://pic1.mangapicgallery.com/r/avatar/8c/u696282_50x50.jpg?2)
The phrasing is wrong and makes it look like she didn't deserve the beating.
She was raping and abusing her son.
The reason why the weakest twin didn't leave the house is because every night or almost every night she would rape him and keep manipulating him into being too scared to leave the house plus the rape.
He beat the abuser up.
Wait I dont get it?? What did the mom do the the child? And what did tooru do? Tooru ended up in jail??