Whatever the reason was for the older sister to do that is a bitchy move. Period.
I think the black haired guy knew that she is lying and he's just teasing the MC by going along with it.
Ehh how long is it going to take before they take down those enemies? Like why they always let them escapeeeee
If someone did that to my loved one, and I am a monster I'll also have the same thought. Like for real it's time for that wanna be monster bully to see what's a real monster is! But oh well good thing I'm just a cat.
I know she will be back and it'll be tear-jerking, but didn't expect it be this emotional ╥﹏╥