Eiro glared at the girl. Just from her rough skeletal structure, she couldn't have been older than 13 or 14 when she passed. That is, if this was her first form as a monster. If she happened to have evolved already, Eiro had no proper way of knowing what she looked like when she was still alive.
She had scratches on her bones, cracks. In particular, her hands had been broken many times before. Slowly, the Demon grabbed his own left hand and started twisting and pulling on his fingers. The only way they could have been cracked in that form is if they were forcibly broken by another person.
Her ribs in particular were in a bad state as well. Clearly, she had been abused when she was alive. Undead monsters heal in other ways, such cracks wouldn't form after healing anymore. But then again, since she had Life Force within her, she wasn't any regular Undead anyway.