Stella and the three others weren't officially part of the army.
Though they could participate in the battle, it isn't the right time yet.
The soldiers and knights have battle formations and it's not something they can follow. They could only watch from afar as the Knights fought with practiced movement.
"Where's Diether and the Knight Champion?" Yasmin asked as she squinted her eyes. She had just recently learned from Stella and Lyrei how to use her Spiritual Energy on her eyes to boost her sight.
Unfortunately, she didn't have a proper education so her control with her Spiritual Energy is extremely limited. She only knows to strengthen her weapons and activate her Arcana before…
Luckily, Lyrei and Stella were good friends as they taught her some complex Spiritual Energy uses.