Hakari Atsuko
In Blue Archive, Hakari Atsuko is the heart and soul of the Arius Squad. We learn that she is actually of royal blood during the very intense Eden Treaty story. This means she is the real princess of the destroyed Arius district. At first, she is a mysterious enemy with her squad, but her role quickly changes to that of someone Sensei needs to save. Her teammates will do anything to keep her safe. She is the weak but hopeful heart of a group that was raised only for war.
Atsuko has one of the coolest looks in the whole game. At first, her scary tactical gas mask covers her whole face. But when she finally takes it off, you will see her beautiful red eyes and long, pale purple hair. She has on a heavy black Arius uniform and is carrying a sleek submachine gun. Even though she seemed scary at first, she is actually very kind. She is a total kuudere who talks softly and is interested in simple things like flowers that are blooming. Fans really love this gap moe. She is a sweet waifu who went through a lot of pain but still smiled.
This amazing difference makes Atsuko great for desktop backgrounds. Artists love to draw her holding beautiful flower bouquets while wearing all of her tactical combat gear. There are a lot of cool atmospheric art pieces with her famous gas mask in ruined cities. There is a lot of nice fan art of her finally being happy with her squad. She has the right mix of tough tactical looks and pure healing energy.