Nathan and Brunhild were rampaging on the battlefield. Nathan manipulated the battle with his bullet while Brunhild utilized her raw power to cut down one mature class alien after another.
It was definitely exhausting for Brunhild, but this was what they currently needed. As long as other familiars were able to somehow join Fenrir and the others, they would be able to turn the situation around.
Under Nathan's instruction, Brunhild killed 7 mature class aliens in succession. The familiars who had been helped continued with Nathan and Brunhild to the next target, lessening the burden on her.
Nathan noticed that Brunhild might not be able to join the battle against the warrior class alien. Just like Risa, she was not in a condition to fight anymore.
Brunhild couldn't help but grit her teeth. Even though there was stamina left, using her new magic all the time had drained all the ena in her reserve.