The God of Pain's Groom chapter 64.4 discussion

[Blackangel]

this is something
i never thought river will be so bothered by not being able to block forrest and her emotions.

 

[Rinko]

Forrest is his sister.
So, he is bothered by it a lot because it would mean, he doesn't care for her.

 

[Blackangel]

that's right
and for him forrest is like the sunshine and he likes his sister a lot.