It is sad that Riku-san had to die and Aro-chan took the blame because she didn't pull the trigger to kill her enemy but I'm also glad she didn't kill them or she would lose her humanity for killing a person. It's also surprise that everyone in the base knew Aro-chan is a girl, it makes sense when Boss kept injuring the girl so she couldn't join the battlefield.
It is sad that Riku-san had to die and Aro-chan took the blame because she didn't pull the trigger to kill her enemy but I'm also glad she didn't kill them or she would lose her humanity for killing a person.
It's also surprise that everyone in the base knew Aro-chan is a girl, it makes sense when Boss kept injuring the girl so she couldn't join the battlefield.