Atsuko

If Atsuko had a younger sibling, she would be a combination of a wise mentor and an impenetrable shield. A younger sibling would give Atsuko a more personal reason to continue fighting for a brighter future, beyond mere survival.

As a direct descendant of the Arius royal family, he carries a great burden of responsibility. However, he doesn't let his lineage dictate who he is. He possesses the strong mentality to choose his own path, even if it means facing great conflict.

​Despite appearing serious and quiet, Atsuko sometimes shows a mischievous or playful side, especially when interacting with Sensei. She often makes remarks that leave others curious or confused about her true intentions.

Due to her harsh Arius background, she has a somewhat fatalistic outlook on life, but she still strives to find beauty in it. She is particularly fond of flowers, which, for her, symbolize life, which can still bloom even in devastated or barren places.

Atsuko actually cares deeply for the other members of the Arius Squad (Saori, Misaki, and Hiyori). She is often the emotional balance of the group. She is willing to sacrifice herself for the safety of her friends, displaying a strong altruistic side.

Atsuko is known for her calm demeanor, almost carefree, even in difficult situations. She often speaks in a soft, mysterious tone, giving the impression of a graceful yet unattainable princess.