[Kitsu]

That would be really appropriate but I'm not sure about Jessica and Battler. I think you could actually switch them and they would still fit. Since Battler who always battle Beatrice also seeks for justice and Jessica always wants to face the killer face on. I think both ways are alright.
And also it would make sense, since the children always "draw a line" between themselves and the adults. They say they never want to become like them and stuff.